Mecha
n. 机械；机甲
🗣️ 情景例句
He has had various experiences in his life.
他的生活经验丰富。
Habit is a second nature.
习惯成自然。
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。