Calcarea usta
[医] 生石灰, 氧化钙
🧩 词语组成解析
[医] 钙质纲
abbr. 美国网球协会（United States Trademark Association）
🗣️ 情景例句
if you skip it now.
假如你现在略过它的话。
You'd better see a doctor about that stomachache.
你胃痛最好去看医生。
At that moment, everybody began to laugh and sing.
此时，大家已经笑了起来，同时唱起了歌。