zhè / bēi / niú nǎi / wén shàng qù / yǒu / diǎn / suān / kǒng pà / yǐ jīng / huài / le

这杯牛奶闻上去有点酸，恐怕已经坏了。

This glass of milk smells a bit sour; I'm afraid it has gone bad.