1·He let himself in with a duplicate key.
他用一把另配的钥匙打开门进去了。
—— 《柯林斯英汉双解大词典》
2·First have a duplicate key cut.
你先去配把钥匙。
3·May I borrow a duplicate key?
我可以借用备用钥匙吗？
4·May I Borrow a duplicate key, please?
请把备用钥匙借给我好吗？
5·Which means no duplicate key is allowed.
这意味着没有重复的关键是允许的。
6·He gave me a duplicate key of his house.
他给了我另配了一套他房子的钥匙。
7·We have a duplicate key to the front door.
我们有前门的备用钥匙。
8·I've locked myself out. Could I have a duplicate key?
我把自己锁在门外了。可以给我一把备用钥匙吗？ ？
9·I've locked myself out. Could I have a duplicate key?
我把自己锁在门外了。可以给我一把备用钥匙吗？
10·There is a duplicate key violation example on that page.
有一个例子在这个页面复制钥匙违反。