The sun descended behind the hills.

　　太陽下山了。

　　I wish that the prices can descend.

　　但愿物價會下降。

　　I didn't expect him to descend to personal abuse.

　　我沒料到他會墮落到對我進行人身攻擊的地步。

　　At 6:30 p.m. the tropical darkness descends.

　　在傍晚六點半的時候,熱帶地區(qū)的黑夜降臨。

　　The custom has descended to our day.

　　這一習俗一直傳到今天。