Ceanothic acid
[化] 美洲茶酸
🧩 词语组成解析
🗣️ 情景例句
Please excuse me for a minute.
失陪一会儿。
There's TV coverage of the NBA tournament.
有个NBA联赛的电视报道。
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大约每月一次。不太经常写信，因为我俩的时间都很紧。我们都有做不完的事。