wèn lù shí shuō qīng nǐ yào zuò nǎ yī bù, bù yào zhǐ shuō kàn bìng zài nǎ lǐ

问路时说清你要做哪一步，不要只说“看病在哪里”。

When asking for directions, be specific about which step you need, not just say 'Where is the doctor's?'