Velocity error
[电] 速度误差
🧩 词语组成解析
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。