The sun descended behind the hills.
太阳下山了。
I wish that the prices can descend.
但愿物价会下降。
I didn't expect him to descend to personal abuse.
我没料到他会堕落到对我进行人身攻击的'地步。
At 6:30 p.m. the tropical darkness descends.
在傍晚六点半的时候,热带地区的黑夜降临。
The custom has descended to our day.
这一习俗一直传到今天。