You look ill. What's the trouble?

你看起来有病，怎么会事？

You look ill there days.

近来你看起来病了似的。

Tom: You look ill, my friend. What's up?

汤姆：你看来气色不大好啊，怎么了？

You look ill. You can't go climbing the hill.

你看起来病了，不能去爬山了。

You look ill.

你想是病了。