Monophyly
单系
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
Industry is fortune's right hand,and frugality her left.
勤勉是幸运的右手，世俭是幸运的左手。
We were in a better position than they were.
我们的处境比他们要好。