Keep a duplicate in case the original gets lost.保留一个副本, 以防原件丢失。

I've lost my card, I need a duplicate.我的卡丢了, 需要补办一张。

They found a spare key and made a duplicate.他们找到了一把备用钥匙, 就又配了一把。

The gardener can grow an exact duplicate of the original from the cuttings.园丁可以用插条培育出和原品种一模一样的植株来。.

You've made a duplicate of the original molecule.你已经对原来的分子进行了复制。

The trip records had been kept in duplicate.旅游记录已一式两份进行了保存。

Charles scored again, with an exact duplicate of his first goal.查尔斯梅开二度, 与第一次射门如出一辙。

If there are duplicates of some ingredient, they'll simply try different dishes.如果配料有重复的话, 他们就会尝试不同的菜肴。

a duplicate copy of the contract合同的副本

He let himself in with a duplicate key.他用一把配的钥匙打开门进去了。

We lost our keys but fortunately there was a duplicate set.我们的钥匙丢了, 不过幸运的是还有一串配好的钥匙。

They were later awarded duplicate gold medals.后来向他们颁发了一模一样的金牌。

If you are receiving duplicate catalogues, please contact us.如果你收到了两份目录册, 请与我们联系。

an attempt to duplicate his overseas success here试图在这里再创他在海外的辉煌的努力

Scientists hope the results will be duplicated elsewhere.科学家希望其他地方也会得出同样的结果。

We don't want to duplicate the work of the official inquiry.我们不想无谓地重复进行官方调查。

He was duplicating articles on the photocopier.他正在复印机上复印文章。

the box warning users not to duplicate copyrighted material盒子上警告用户不要复制受版权保护的资料

a business which duplicates video and cinema tapes for the movie makers为电影制作者复制视频和电影录音带的公司

a mechanism by which cells can duplicate their genetic information细胞借以复制遗传信息的机制

chromosomes that have duplicated many times已多次复制的染色体