... be necessary for 是...需要的, 对...有必要 be occupied in 忙于...,正从事... be of (great) help 对...很有帮助 ...
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be occupied in doing sth 占用住房 ; 忙于做某事
be occupied in sth 忙于做某事
be occupied in doing something 被占领的做某事
To be occupied in what does not concern you is worse than doing nothing.
忙活一些与己无关的事,甚至比无所事事还要糟糕。
To all appearance, he seemed to be occupied in the constant contemplation of something terrible.
看他那神气,仿佛随时在留心瞧着一种骇人的东西。
The wise men will seek out the wisdom of all the ancients, and will be occupied in the prophets.
明智人必考究历代古人的智慧,必专务先知的预言。
Some of the sites that are said to be destroyed by Joshua and the Israelites weren't even occupied in this period, ; the late Bronze Age, beginning of the Iron Age; the Iron Age begins around 1200.
据说一些遗址已被破坏,被约书亚,以色列在那时还未被攻占,在铜器时代晚期,铁器时代的初始;,接触器时代自1200年左右开始。
And what the second point of Aufbau says is that as electrons begin to fill those levels the differences in energy may shift so that in an unoccupied state certain levels may be in the inverse order from how they are in the occupied state.
构造原理谈到的第二点是,当电子开始布满这些层时,能量差可能会有改变,所以在一个未占据的确定能级,可能与它们占据时,的排布顺序是相反的。
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