你更喜欢中医还是西医？

Nǐ gèng xǐhuān Zhōngyī háishì Xīyī?

Do you prefer Chinese medicine or Western medicine?

很多人生病的时候会先去看西医。

Hěn duō rén shēngbìng de shíhou huì xiān qù kàn xīyī.

When many people get sick, they go to see a Western doctor first.

我朋友是西医，他在北京工作。

Wǒ péngyou shì xīyī, tā zài Běijīng gōngzuò.

My friend is a Western doctor, and he works in Beijing.