spare key
US /sper kiː/
UK /speə kiː/
名詞
備用鑰匙
an extra key kept in case the main one is lost or for another person to use
範例:
•
I keep a spare key under the flowerpot in case I get locked out.
我在花盆下放了一把備用鑰匙，以防被鎖在門外。
•
Could you give me a spare key to your apartment?
你能給我一把你公寓的備用鑰匙嗎？