Calconcarboxylic acid
[化] 钙指示剂; NN指示剂; 钙红
🧩 词语组成解析
🗣️ 情景例句
So long.
再见。
When the police arrived, I was doing the housework.
当警察来的时候，我在做家务。
It is a harmless bait, but it litters up her desk to such an extent that every time she opens it, loose bits of paper fall out in every direction.
这种习惯无害，只把写字台里堆得满满当当，以致每次打开抽屉总能带出许多纸片四处飞扬。