释义
n. 声音,吵闹,海峡 a. 健全的,可靠的,合理的 v. 听,发出声音,测量
例句
1. They have got home safe and sound. 他们已平安到家。 2. I caught a curious sound in the neighboring room. 我听到隔壁房间里有奇怪的响声。