straight-line
straight-line — 搭配詞
1. going from one point to another without turning or bending on the way
筆直的
不轉彎地朝同一方向延伸
going from one point to another without turning or bending on the way
Daniel drew a straight-line arrow from the station to the museum.
Daniel 畫了一支從車站直指博物館的筆直箭頭。
pattern: straight-line + arrow
The app showed a straight-line path across the school field.
這個 app 顯示一條穿過學校操場的筆直路徑。
pattern: straight-line + path
Zuri checked the straight-line distance before booking the boat ride.
Zuri 在訂船程前先查了筆直距離。
The robot followed a straight-line track through the empty warehouse.
那台機器人在空倉庫裡沿著筆直軌道前進。
- direct
is broader and can describe a route without focusing on geometric shape
- point-to-point
often stresses travel between two fixed places in transport or mapping
- linear
sounds more technical and is common in math or design
文法句型
straight-line route
straight-line path
straight-line distance
用法筆記
Usually appears before nouns that describe movement, measurement, or shape. It stresses the direct route itself, not whether the trip is fast or easy.
常見錯誤
straight-line — 形容詞
1. used for movement, measurement, or shape that follows the shortest direct course
直線的
沿最直接路徑進行或量出的
used for movement, measurement, or shape that follows the shortest direct course
The survey uses straight-line distance, not road distance, between villages.
這份測量用的是村落之間的直線距離，不是道路距離。
collocation: straight-line distance
Wei measured the straight-line gap from the tower to the harbor.
Wei 量了高塔到港口之間的直線間距。
The game rewards the car with the highest straight-line speed.
這款遊戲會獎勵直線速度最高的車。
Engineers compared the straight-line length with the older curved route.
工程師把直線長度和較早的彎曲路線做了比較。
- direct
is the everyday choice and is less geometric
- linear
is more technical and often used in science or design
- point-to-point
is common when the start and end places are the main focus
文法句型
straight-line distance
straight-line speed
straight-line measurement
用法筆記
Most often modifies nouns such as distance, speed, path, or measurement. Use it when the direct course matters more than real roads or obstacles.
常見錯誤
2. describing an engine whose main working parts are set in a single row
直列式
主要零件排成單一直列的
describing an engine whose main working parts are set in a single row
Gabriel bought a used car with a straight-line six engine.
Gabriel 買了一輛配直列六缸引擎的二手車。
collocation: straight-line six engine
The museum label explains how a straight-line engine keeps its cylinders together.
博物館標牌說明了直列式引擎如何把汽缸排在一起。
Our teacher drew a straight-line four engine on the board.
老師在黑板上畫了一具直列四缸引擎。
The old taxi used a straight-line engine with every cylinder in one row.
那輛老計程車使用直列式引擎，每個汽缸都排成一列。
文法句型
straight-line engine
straight-line six
straight-line four
用法筆記
This sense is mainly used in car and engine talk. It contrasts with V-shaped or flat engine layouts, so it usually appears before engine, four, or six.
常見錯誤
3. describing a mechanism built to create or copy motion that travels forward in on
直動式
用來產生直線運動的裝置
describing a mechanism built to create or copy motion that travels forward in one direct line
The workshop tested a straight-line linkage on the new cutting machine.
工坊在新切割機上測試了一組直動式連桿。
collocation: straight-line linkage
Engineers chose a straight-line mechanism to move the blade evenly.
工程師選用直動式機構，讓刀片平穩移動。
pattern: straight-line mechanism
The model uses a straight-line guide so the drill head travels directly.
這個模型用了直動式導引，讓鑽頭直接前進。
Rafael watched the straight-line device copy the pen's motion across the sheet.
Rafael 看著那個直動式裝置把筆的移動複製到紙上。
- linear-motion
is close in engineering writing but often appears in longer compounds
- rectilinear
is more formal and mathematical than straight-line
- rotary
describes motion that turns around a center
- curved-path
describes motion that bends instead of staying direct
文法句型
straight-line linkage
straight-line mechanism
straight-line device
用法筆記
Use this sense in mechanical design, where the key idea is producing a true direct motion from another movement. It is narrower than the engine-layout sense in adjective/2.
常見錯誤
4. describing a plan where the amount paid or charged stays the same in each period
等額的
每一期金額都相同的
describing a plan where the amount paid or charged stays the same in each period
The bank offered a straight-line repayment plan for the shop loan.
銀行為那筆店面貸款提供了等額攤還方案。
collocation: straight-line repayment plan
With straight-line payments, Linh paid the same amount every month.
採用等額付款時，Linh 每個月都付相同金額。
pattern: straight-line payments
The finance sheet compares straight-line charges with rising-rate ones.
財務表把等額費用和逐步增加的費用做比較。
Our lease uses a straight-line charge over the full three-year term.
我們的租約在整個三年期間都採用等額計提。
- level-payment
is common in finance when each payment stays equal
- even
is a broader everyday word and is less technical
文法句型
straight-line repayment
straight-line charge
straight-line plan
用法筆記
This sense belongs to accounting and lending language. It highlights that each payment period carries the same amount, unlike plans where early and later payments differ.