Phthoric acid
[化] 氢氟酸
🧩 词语组成解析
🗣️ 情景例句
She went to a school-board meeting.
她去参加联合校董会的会议。
Appearances are deceitful.
人不可貌相，海水不可斗量。
I think she hit her head when she fell.
我想，她跌下来时，把头给撞了。