机械词典大全 ... useful life;有效寿命,有效期 useful life factor;有效寿命影响因素 useful tool;有用的工具 ...
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Used to do something 表示过去常做而现在已经停止了的习惯动作 ; 过去经常做 ; 被用于做某事 ; 习惯做某事
Be used to do something 被用来做某事
be used to doing something 习惯于做某事
Now used to do something 现在习惯做某事
Be used to take something 被用来坐某事
Something is used to make 某物被用来做
Something to be used for 某物被用来做
These early plants probably used something called retinal, which is a dark purple color.
这些早期的植物可能使用了一种叫做视黄醛的东西,它是一种深紫色的分子。
The with clause is the first example where we used something other than a set to customize a graph.
with 子句是我们使用除了 set 之外的其他项来定制图的第一个例子。
Fail—"a noun or interjection used when something is egregiously unsuccessful"—was 2009's the most useful word.
失败——“名词或感叹词,当某事非常不成功时使用”——被评为2009年最有用的单词。
But beans are used to describe something of very little value in the expression, not worth a hill of beans.
VOA: special.2010.01.31
It can be used as a publishing medium and something that you can interact with, instead of something that is a burden to receive.
它可以用作一个发行媒介,成为你可以与之互动的东西,而不再是一个负担。
That used to be something that was like 80s, 90s, but now it's definitely coming back.
这种曾是八九十年代的东西,现在无疑又开始流行了。
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