Quite rightly , the environment is of great concern.

当然，环境问题人们极为关注。

The percentage of false negatives generated by the cancer test is of great concern.

癌症检查的结果中，假阴性占一定比例的现象受到极大关注。

I think this is a phenomenon which calls for our great concern.

我认为这是一个值得我们高度关注的现象。

The scientists showed great concern about the warming of the earth.

科学家们对全球变暖感到非常担忧。

Drunk driving, which has resulted in many car accidents, aroused great concern among the public.

醉酒驾驶造成了许多起车祸，在公众中引发了的极大担忧。