在草地里长蘑菇的英文表达是 "mushrooms growing in the grass."

这句话的来源是指在草地上生长的蘑菇。

以下是一些英文例句及其中文翻译：

I went for a hike in the woods and found some mushrooms growing in the grass. 我去森林里散步，在草地上发现了一些蘑菇。
The children were excited to see the mushrooms growing in the grass. 孩子们看到草地上长出的蘑菇很兴奋。
We picked some mushrooms growing in the grass and added them to our salad. 我们摘了一些在草地上生长的蘑菇，加到了沙拉里。