您要查找的是不是：
- Keep a duplicate of the document. 要保存一份文件复印件。
- We mailed the letter but kept a duplicate. 我们寄出了信, 但留有副本。
- Have replacements. Keep a duplicate car key in your wallet, a spare house key buried in the garden, and extras of other items you frequently need. 凡事搞个备份，比如钱包里放个备用车钥匙，花园里埋把家门钥匙，等等。俗话说，狡兔三窟。
- Keep a duplicate of the letter. 保存一份信的副本。
- He gave me a duplicate key of his house. 他给了我另配了一套他房子的钥匙。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- Keep a level head and phone the Fire Department. 保持冷静，打电话给消防署。
- We keep a few fowls and some goats. 我们养了几只鸡和一些山羊。
- Can you keep a secret? All right I'll tell you. 你能保守秘密吗？那我就告诉你。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Keep a cool head when thing go wrong. 出问题时要保持冷静的头脑。
- The governor was attacked by the press for failing to keep a campaign promise. 州长因没能履行一项竞选时的承诺而受新闻界抨击。
- Keep a tally of how much you spend. 把你的花费都记录下来。
- The dog kept a vigilant guard over the house. 这只狗警惕地守护着这所房屋。
- One that closely resembles another; a duplicate. 相似者和另一个酷似的人或物；翻版
- Her name is a duplicate of mine. 她与我重名。
- Keep a vigilant eye on the imperialist jackals. 对帝国主义的走狗要保持警戒。
- I don't see why you should keep a diary at all. 我不明白你为何要记日记。
- Always keep a first-aid kit handy. 手边要经常有个急救箱。
- They usually keep a light on at night. 他们通常夜里开着灯。
