Centrage
[医] [折射]中心线
🗣️ 情景例句
I'm really concerned about them,
我真的为他们担心，
I came to Harvard on a scholarship.
我是靠奖学金来哈佛大学求学的。
good-tempered elephant who will give many years of loyal service.
脾气温顺、能忠实为人服务多年的大象。