Ettringite
[化] 钙矾石; 钙铝矾
🗣️ 情景例句
Today, trade imbalance between the United States and our country is becoming worse.
当前美国与我国间的贸易不平衡问题正日益恶化。
Please ask John to turn on the lights.
请要求约翰打开灯。
Whenever I visit him, he is not at home.
不管我什么时候去找他，他都不在家。