1. The dispute over when the president's term ends stems from Moise's original election.
stem from 源于
All my problems stem from drink
我所有的问题都源于酗酒
。2. The moves came after Biden unveiled a host of measures last week aimed at revamping the U.S. immigration system.
a host of 很多
He was a gentle, sensitive, lovable man who will be missed by a host of friends.
他是一个温和、体贴而且可爱的人,许多朋友都会想念他的
。