Monophyly
单系
🗣️ 情景例句
Absolutely right, Betty.
完全正确， Betty。
A man can do no more than he can.
凡事只能量力而行。
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。