Bessel
[计] 贝塞尔
🗣️ 情景例句
But especially my family.
但尤其是我的家人。
Don't teach your grandmother to suck eggs.
休要班门弄斧。
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。