草的香味用英语可以称为 "the smell of grass"。这种香味来自于草在切碎或摩擦时产生的植物油，这些植物油中包含着各种香气成分。

下面是一些英文例句和它们的中文翻译：

The smell of freshly-cut grass always brings back childhood memories for me. (新鲜割好的草的香味总能让我回想起童年的记忆。)
The smell of grass is one of the things I love most about summer. (草的香味是我最爱的夏天东西之一。)
The smell of grass after a rainstorm is pure magic. (雨后草的香味实在是太神奇了。)
I can't wait to lay down on the grass and breathe in the fresh, earthy smell. (我迫不及待地想躺在草地上，呼吸着清新的泥土气息。)