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valve duration

美音:[valveduration ]点这儿播放单词美音发声
英音:[valveduration ]点这儿播放单词英音发声
气门开启持续时间

难易程度:

valve duration为短语/超纲词汇
1. He will be in the hospital for the duration of the school year.
    整个学年中他都会呆在医院里。

2. He soon detected the faulty valve.
    他很快查出了出毛病的阀门。

3. During the duration of one human lifetime, not many things change.
    人的一生中,不会有很多东西发生变化。

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