precipitation
/prɪˌsɪpɪˈteɪʃn/ (bre, ipa) · /prɪˌsɪpɪˈteɪʃn/ (ame, ipa) · /pri-ˌsi-pə-ˈtā-shən/ (ame, mw)
precipitation — 名詞
1. rain, snow, or other water that comes down from the sky, or the total amount tha
降水
雨雪等從天而降；也指其總量
rain, snow, or other water that comes down from the sky, or the total amount that falls in a place.
The forecast warned of heavy precipitation in the mountains tonight.
氣象預報警告今晚山區會有大量降水。
collocation: heavy precipitation
Overnight precipitation left a thin layer of snow on the highway.
夜間降水在天亮前讓公路積了一層雪。
Taipei gets less precipitation in January than in June.
台北一月的降水比六月少。
Sudden precipitation forced the referee to stop the soccer match early.
突來的降水迫使裁判提前停止這場足球賽。
On this island, most summer precipitation falls during short afternoon storms.
這座島上夏季的大部分降水都來自午後短暫暴風雨。
- drought
a long period with little or no precipitation
文法句型
heavy / light precipitation
annual precipitation
precipitation + falls
用法筆記
Common in weather reports, geography, and science classes. Unlike rain, this sense also covers snow, sleet, and hail, and it can refer to the amount measured over time.
常見錯誤
2. the habit or act of moving too fast and making a decision before enough thought
輕率
未充分思考就倉促行事
the habit or act of moving too fast and making a decision before enough thought or planning.
Owen acted with precipitation and signed the contract without reading page two.
Owen 行事輕率，沒看第二頁就簽了合約。
pattern: act with precipitation
The council blamed the mayor's precipitation in approving the bridge design.
市議會把倉促批准橋梁設計一事歸咎於市長的輕率。
The team's precipitation led them to send an unfinished bid to Seoul.
團隊因行事輕率，把一份未完成的投標書送到了 Seoul。
The appeal court criticized the trial judge's precipitation in sentencing the teenager.
上訴法院批評那位審判法官判這名少年刑期時過於輕率。
Nina's precipitation at the payment desk turned a small billing error into a public argument.
Nina 在付款櫃台前的輕率，把小小的帳單錯誤變成公開爭吵。
- haste
more general; can be neutral or negative depending on context
- rashness
stronger; clearly suggests poor judgment
- impulsiveness
stresses acting from sudden feeling rather than careful thought
- caution
careful attention before acting
- deliberation
formal; careful thought before a decision
文法句型
act with precipitation
somebody's precipitation
precipitation in decision-making
用法筆記
Usually found in formal writing rather than everyday speech. It often appears after with or in possessive forms, and it names rash speed in judgment, not simple physical quickness.
常見錯誤
3. a process where dissolved material turns solid and comes out of a liquid during
沉澱；析出
液體中形成固體的化學過程
a process where dissolved material turns solid and comes out of a liquid during a reaction.
Adding salt caused precipitation at the bottom of the glass jar.
加入鹽後，玻璃罐底部產生了沉澱。
pattern: cause precipitation
The students watched precipitation begin when the two clear liquids mixed.
學生看著兩種透明液體混合時開始發生沉澱。
pattern: watch precipitation begin
In the beaker, heat sped up precipitation in the copper solution.
在燒杯裡，加熱讓銅溶液更快產生沉澱。
The scientist measured how fast precipitation occurred after the acid was added.
科學家測量加酸後沉澱發生的速度。
Before the final wash, this step removes copper from the tank by precipitation.
最後清洗前，這一步會用沉澱法把槽中的銅去除。
- separation
broader; not limited to solids forming in a liquid
- deposition
technical; can include material settling onto a surface
- crystallization
narrower; focuses on crystal formation rather than any solid
- dissolution
a solid mixes into a liquid instead of coming out of it
文法句型
cause precipitation
precipitation of + substance
remove + substance + by precipitation
用法筆記
Common in chemistry classes, lab reports, and technical explanations. It often appears with cause, form, prevent, or of plus the name of the substance.