在草地玩耍的时候你们应该小心蛇英语说

在草地玩耍的时候你们应该小心蛇英语说

Be careful of snake when you play on grass.
Be careful of 介词短语：对...小心。
grass 前不需介词， 因并不特定在这块草地上， 任何草地都可能有蛇。

You should watch out for snakes when playing on the grass.

You should be careful when you play in the grass.

你好！ You should be careful when playing on the grass snake 仅代表个人观点，不喜勿喷，谢谢。