A: Hi, I don't feel very well. I may have caught a cold.

您好，我感觉不舒服，可能是感冒了。

B: How long have you been feeling like this?

这种情况维持多久了?

A: 3 days already.

已经3天了。

A: How do you feel?

你感觉怎么样?

B: I don't feel like eating anything. I feel like vomiting.

我什么也不想吃，想吐。

A: How long has this been going on?

你这样有多久了?

B: For one day.

一天。