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to use up
[phrase form: use]
01
用完, 耗尽
to entirely consume a resource, leaving none remaining
Transitive: to use up a resource
Example
She used the milk up in the recipe, so we need to buy more.
她在食谱中用完了牛奶，所以我们需要再买一些。
They used the fuel up during the long journey.
他们在长途旅行中用完了燃料。
02
用完, 消耗
to require a certain amount of time or space
Transitive: to use up a period of time
Example
The long presentation used up the scheduled time for other speakers.
长时间的演讲用完了其他演讲者的预定时间。
The lengthy discussion used up the entire class period.
漫长的讨论用完了整个课时。
