spare key
US /sper kiː/
UK /speə kiː/
名词
备用钥匙
an extra key kept in case the main one is lost or for another person to use
示例:
•
I keep a spare key under the flowerpot in case I get locked out.
我在花盆下放了一把备用钥匙，以防被锁在门外。
•
Could you give me a spare key to your apartment?
你能给我一把你公寓的备用钥匙吗？