1.flock v.聚集, 成群而行
In the summer, tourists flock to the museums and art galleries.
夏季游人成群结队到博物馆和艺术馆参观 。
2.pecking order n. [生]啄序(禽类中占优势的可以啄地位低的), 权势等级
The guy at the bottom of the pecking order takes shit from everybody.
那个地位最低的家伙必须受每个人的气 。
3.hatch v.孵, 孵出, 策划
Hen's eggs take21 days to hatch out.
鸡蛋需要21天才孵化 。