How can anyone look sad at an occasion like this?

在像这样的一个场合怎么会有人看上去悲伤呢？

Hi, you look sad. What's up?

嗨。你看上去很伤心。怎么了？

You look sad. What's the matter?

你看起来很伤心。怎么了？

What's the matter? You look sad.

你怎么样了？看着这么悲伤。

Ask if you can help when they look sad.

当他们看起来忧愁的时候，问你能否帮点忙？