人们在草坪上英文

There are a lot of people playing on the grass.

in the ground

Onthegrass

The family are sitting on the grass.

on the lawnon the grass都可以，我倾向于第一种

on the lawnon the grasson the green（这个不常用）有时也用over 或 across 这要看你表达的是什么意思 例句：He spread fertilizer over the lawn; scatter cards across the table. 他把肥料撒在草坪上；在桌子对面散发卡片。 The trees threw long shadows across the lawn. 树在草坪上都投下长长的影子。

Mondy persons play on the grassland.