她對(duì)環(huán)境問題深感擔(dān)憂。
She cares deeply about environmental issues.
我們剛到，問題就來了。
Hardly had we arrived than the problems started.
移民問題不在爭論之列。
The problems of immigration were not the question at issue.
我經(jīng)常思考這個(gè)問題。
I have often thought about this problem.