Serr
abbr. serrate 有锯齿的
🗣️ 情景例句
Sorry, I've already got plans.
对不起， 我有事。
No matter what she says, don't show you are afraid.
不论她说什么，你也不要让人知道你害怕了。
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远