Nitrocinnamic acid
[化] 硝基肉桂酸
🧩 词语组成解析
🗣️ 情景例句
Good morning.
早安。
I ought to stay at home.
我应该留在家中。
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。