bottom out
collocation跌至最低点；触底回升
After months of decline, house prices have finally bottomed out.
经过几个月的下跌，房价终于触底回升。
跌至最低点
先理解核心含义，再看它在真实句子里的用法。
跌至最低点
To fall to the lowest point.
The stock market bottomed out in March after months of decline.
股市在连续数月下跌后于三月份触底。
常与 out 连用
为(某物)装上底部
To furnish (something) with a bottom.
将烈酒倒入(待加苏打水的玻璃杯中)
To pour spirits into (a glass to be topped up with soda water).
在或基于某物上建立或创立
To establish or found (something) on or upon.
位于底部；位于下方
To lie on the bottom of; to underlie, to lie beneath.
bottom
Base
原形
bottoms
3rd person
第三人称单数
bottoming
-ing
现在分词
bottomed
Past
过去式
bottomed
Past participle
过去分词
The boat bottoms out in shallow water.
船在浅水处触底。
They bottomed the price after negotiation.
经过谈判，他们把价格压到了最低。
The market has bottomed and is starting to recover.
市场已经触底，开始复苏。
The ship bottomed on the sandbar and got stuck.
船搁浅在沙洲上，动弹不得。
They bottomed the pole in the riverbed to measure the depth.
他们将杆子插入河床以测量深度。
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跌至最低点；触底回升
After months of decline, house prices have finally bottomed out.
经过几个月的下跌，房价终于触底回升。
触到水底而受阻；（船等）搁浅
The boat bottomed on the sandbar and was stuck until the tide rose.
船触到沙洲搁浅了，直到涨潮才脱困。
在性关系中扮演接受方
He usually bottoms for his partner.
他通常在性关系中扮演接受方。
触底，跌至最低点后趋于稳定
After months of falling, the stock market finally bottomed out in April.
经过数月的下跌，股市终于在四月触底企稳。
Use bottom naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住bottom是“底部”，做动词就想一幅画面：球沉到水底停住——跌到底就是“触底”，船碰到底则受阻。
语域：mixed 常见场景：financial/economic reports、sexual contexts 作动词时，bottom 的语域随义项变化：表示“跌至最低点、触底”时较中性，多用于经济、市场或价格走势等语境；表示“性行为中做接受方”时则属非正式/俚语，多用于口语。使用时需根据具体义项选择合适语域。
该动词既可作及物动词（给...装底，查明真相），也可作不及物动词（到达底部，建立基础）。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.