1.goes down 落下
Your car insurance goes down and your car payments go up.
汽车保险费下降了，汽车月供上升了。

2.roost in 栖息于
Peafowl fly well despite their size, and roost in trees at night.
孔雀不管大小，都善于飞行，晚上在树上栖息。

3.be bound to 注定
The Company and its shareholders will not be bound to consider or accept either the highest or any offer.
公司和其股东均不必考虑或者接受最高的或者任何报价。