钥匙在沙发底下用英文怎么说

The key is under the sofa.

来源：这句话是根据语境推断出来的，表示钥匙在沙发底下。

例句1:

Can you help me find the key? I think it's under the sofa.
(你能帮我找钥匙吗？我想它应该在沙发底下。)

例句2:

I can't find my keys. Did you check under the sofa?
(我找不到我的钥匙了。你有没有在沙发底下找过？)