You are probably well enough to take a little light exercise.
你恢复得不错，大概可以做些轻微的运动了。
Recent research has thrown new light on the causes of the disease.
最近的研究可以使人进一步了解导致这种疾病的`原因。
He came up to me and asked for a light.
他走到我跟前来借火。
The lights changed to red before I could get across.
我还没来得及通过，红灯又亮了。
In the light of later events the decision was proved right.
从后来发生的事看，这一决定证明是正确的。