First we or throw trash, we also must let around us human not person trash.

首先我们要不乱扔垃圾，我们还应当让我们周围的人也不人垃圾。

youdao

First we or throw trash, we also must let around us human not person trash.

首先我们要不乱扔垃圾，我们还应当让我们周围的人也不人垃圾。

youdao