péngyou mǎi le yī bēi rè shuǐ huílái, zhǐ shuō yīshēng hái méi jiào hào, wǒmen xiān děng

朋友买了一杯热水回来，只说：“医生还没叫号，我们先等。

A friend bought a cup of hot water and came back, only saying, 'The doctor hasn't called the number yet, let's wait first.'