B. s.
[医] 呼吸音, 血糖
🗣️ 情景例句
Oh, sorry. There must be some mistake.
哦，抱歉，一定是弄错了。
There's many a good tune played on an old fiddle.
老当益壮。
All at once, a rabbit came out of a hole.
突然，一只兔子从一个洞中跑了出来。