tail fin

tail fin — 名詞

1. the flat, wide part at the back end of a fish, whale, dolphin, or other sea anim

1.名詞A2
釋義

尾鰭

魚或鯨豚尾部的鰭

the flat, wide part at the back end of a fish, whale, dolphin, or other sea animal, which helps it push through water by moving from side to side or up and down.

例句

When the shark swam past, Harper could see its large tail fin move slowly from side to side.

當鯊魚游過時,Harper 可以看到牠巨大的尾鰭緩慢地左右擺動。

tail fin + of + shark / large fish

A dolphin uses its powerful tail fin to push itself up out of the water and into the air.

海豚用牠強而有力的尾鰭將自己推出水面、飛向空中。

同義詞
  • caudal fin

    the formal scientific term, used mainly in biology

  • fluke

    the specific name for the tail fin of a whale, dolphin, or porpoise

文法句型

tail fin + of + animal

用法筆記

In fish, the tail fin is also called the caudal fin. For whales and dolphins, the tail fin is made of strong tissue rather than bone.

常見錯誤

The whale's tail fin is called a flipper.
The whale's tail fin is called a fluke.
💡'flipper' refers to the side limbs, not the tail.

2. a vertical or angled panel at the back of some cars, aircraft, or rockets that h

2.名詞B1
釋義

尾翼

車輛或飛機後方的穩定結構

a vertical or angled panel at the back of some cars, aircraft, or rockets that helps keep them balanced and stable when moving at high speed.

例句

The old Cadillac was easy to spot because of its huge silver tail fins at the back.

那輛老凱迪拉克車尾巨大的銀色尾翼讓人一眼就能認出來。

tail fin + on classic American cars

The tail fin of the Boeing 737 stood high above the runway as the plane taxied towards the gate.

波音 737 的垂直尾翼高聳在跑道上,飛機正緩慢滑向登機門。

同義詞
  • vertical stabiliser

    the technical term for the tail fin on an aircraft; includes the rudder

  • rear spoiler

    a similar part on modern cars, though usually smaller and designed to reduce air drag

文法句型

tail fin + of + vehicle

用法筆記

This meaning is most common when talking about classic American cars from the 1950s/1960s or the tail section of an aircraft. For modern cars, the term 'rear spoiler' is more common.

常見錯誤

The roof of the car had a tail fin.
The back of the car had tail fins.
💡tail fins are at the rear, not on the roof.