Sialic acid
[化] 唾液酸
🧩 词语组成解析
a. [地](岩石)富硅铝的,硅铝质的, 硅铝带的
🗣️ 情景例句
What's the problem?
什么问题啦？
He can't decide what to do.
他不能决定做什么。
He was just falling asleep when there was a loud knock at the door.
他刚要入睡，就有人很响地敲门。