It takes a lot of pluck to start a new job at his age.
在他这个年纪开始一份新的工作要有很大的勇气。
It took pluck to start out on a new career at his age.
在他这个年纪开始一份新的工作要有很大的勇气。
That means scientists wishing to find out whether a particular batch is still potent cannot just pluck a warhead at random from the stockpile and try to explode it.
那意味着，如果那些希望知道一些特定批次的核武器是否还具功效的话，他们就不能随意地从库存抽取一个和弹头并引爆它。
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