replace the old with the new
例句
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If the equipment is not up to the agreed specifications and quality, we will undertake to replace them.
如果设备达不到议定的规格质量, 我们将负责调换。
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You may use these tools, only you must replace it after use.
这些工具你可以使用, 不过你用完之后得重新放好。
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Our pianist had fallen ill, and then, at the eleventh hour, when we thought we’d have to cancel the performance, Jill offered to replace him.
我们的钢琴演奏者病倒了，在最后关头，当我们以为不得不取消表演时， 吉尔表示愿意代替他演出。
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His decision to resign was disappointing, but it’s no use crying over spilt milk. We need to concentrate on finding someone to replace him.
他辞职的决定令人失望，可是事已至此，伤心也无用，我们需把精力放到寻找接替他的人上。
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They preach the abolition of established systems but prose nothing to replace them.
他们竭力主张废除固有的制度,但没有提出代替这些制度的任何建议。
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Replace with four dry cells and do the experiment again.
用4节干电池取代重做一次实验.
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Replace with a new disc holder assembly and oring.
用新的阀瓣固定器总成和O形 环更换.
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Replace with a needle which is thicker by one.
更换成大1号的机针.
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Stenographers: Sophisticated voice - recognition software will replace court reporters and lots of secretaries and executive assistants.
速记员: 先进的语音识别软件将会取代法庭上的书记员及许多秘书和行政助理.
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Inspect seat for nicks and replace as needed.
检查阀座是否有划痕,如果需要,则加以更换.