Throw litter into the trashcan.

把垃圾扔进垃圾桶里。

I throw litter into the trashcan.

我把垃圾扔到垃圾箱里.

We shouldn't throw litter about in public.

在公共场合我们不应该乱丢垃圾。

We must remember not to throw litter about.

我们必须记得别乱丢垃圾.

We should not throw litter onto the ground.

我们不应该把垃圾倒在了地上。

We shouldn ' t throw litter about in public.

在公共场合我们不应该乱丢垃圾.

Students can not be allowed to throw litter about , Everyone must protect our environment and make it clean and tidy .

学生不可能允许投掷废弃物，大家必须保护我们的环境和使它干净和整洁。