Prebasic
molt(鸟类每年繁殖期后的)大换羽
🗣️ 情景例句
Mm, I'm in a hurry too.
哦，我也有点儿急事要办。
What do you do in your spare time?
空闲时间你干什么？
but few us have had the opportunity to find out.
但很少有人能有机会去弄个究竟。