Examples
kōng zhōng空中yǒu有yí一dà piàn大片wū yún乌云。
空中有一大片乌云。
There is a mass of dark clouds in the sky.
海水蓝蓝的，远远看去像一大片丝绸铺开。
The sea is deep blue, and from afar it looks like a vast sheet of silk spread out.
极目远望，除了一大片小麦田以外，就甚么也看不见了。
As far as the eye could see, nothing could be seen except cornfields.