1. most of these proposals duplicated work already done.
   这些建议中的大部分只是老调重弹。
2. The newspaper had begun as a duplicated broadsheet.
   这家报纸最初为双面版。
3. the normal amount of DNA has been duplicated thousands of times.
   DNA的正常量增加了数千倍。The newspaper had begun as a duplicated broadsheet.
   这家报纸最初为双面版。
4. This cantrip cannot duplicate the effect of any other power.
   这个戏法无法复制任何其他威能的效果。
5. Your jacket's a duplicate of mine.
   你的夹克跟我的一样。
6. Can you duplicate the key for me?
   你能把这把钥匙再给我配一把吗?
7. We have duplicate keys for the front door.
   我们有几把相同的前门的钥匙。
8. The manager asks the secretary to duplicate the document.
   经理让秘书复印这份文件。
9. You can quickly roll off some extra copies of the exercise on the duplicating machine.
   你可以在复印机上很快再复印几份练习题。
10. Enclosed is our contract No. 345 in duplicate, of which please return us one copy, duly countersign.
    随函附上我方第345号合同一式两分，请会签并回寄一份。
11. Duplicate the frame for second frame, unhide some of the hidden rectangles and hide some of the unhidden rectangles.
    复制本图层，对隐藏的矩形进行修改，作为第二帧。
12. The Operating License has the original and the duplicate.The original is held by the operator of the taxicar, and the duplicate is reserved by the municipal transport department for check.
    营运牌照设正本和副本，正本交出租车经营者持有，副本由市运政管理机关保存备查。

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