be concerned about

1.They are concerned about my welfare.

他们关心我的健康。

2.The discussion centres round the problems the broad masses of the people are concerned about most.

讨论集中在广大群众最关心的。

3.Senator John Warner, a Virginia Republican, the other cosponsor of the bill, says Americans are concerned about the impact of climate change and want Congress to act.

议案的另一位发起人、维吉尼亚州共和党参议员约翰.纳说，美国人对气候变暖的影响感到关切，希望国会采。