Ph
氢离子指数\\n[医] 药典; 苯基
🗣️ 情景例句
Don't count your chickens before they hatch.
小鸡孵出之后再算数。
What's your nationality?Are you a Chinese?
你的国籍是什么？你是中国人?
Then it turned in a semicircle, ran straight again, and turned in another semicircle to the opposite side.
然后转一个半圈，再沿直线飞，再朝反方向转个半圈。