你需要一个大塑料垃圾袋。

You will need a large plastic rubbish bag.

许多皮划艇是由一种塑料制成的。

Many kayaks are made from a type of plastic.

但是，我们回收的塑料不多。

But, we don't recycle much of the plastic we use.

塑料需要数百年才能分解。

It takes hundreds of years for plastic to break down.

塑料瓶也污染环境。

Plastic bottles also pollute the environment.