an extra
网络释义
work an extra shift 多轮一班
an extra strong box 加固的箱子
give as an extra 额外增添
to make an extra effort 加油 ; 做出额外的努力 ; 使更多的努力 ; 作出额外努力
an extra-vehicular activity 出舱活动
An Extra Hand 一家宴会承办企业
an extra French class 一节额外的法语课
has an extra-territorial effect 具域外法律效力
Given her an extra key 给过她一把额外的钥匙
双语例句原声例句权威例句
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We have introduced an extra tier of administration.
我们额外增加了一层管理。
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Can we make space for an extra chair?
我们能不能腾个空再放一把椅子？
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She tightened her belt an extra notch.
她将腰带又束紧了一格。
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When she was finished, she counted the money out to the waiter and left an extra coin on his tray.
VOA: special.2009.09.05
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We've added an extra one at 11:00, an extra one at 2:00, and we've added one at 1:00.
我们在11点钟加了课，还有2点和1点。
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So we have 4 plus 5, but we're actually not done yet, because it's c n minus, so if we have minus, we actually have an extra electron in our molecule.
我们有四个加上五个，但是我们实际上还没做完，因为这是个负离子，所以如果我们有这个负号，那么我们的分子实际上还有一个额外的电子。
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