农药可以帮助控制害虫。

Pesticide can help control pests.

农民们在田地里喷洒农药。

Farmers spray pesticide in the fields.

我们需要找到一种更安全的农药。

We need to find a safer pesticide.

这种农药对环境有害。

This pesticide is harmful to the environment.

他们正在研究一种新的有机农药。

They are researching a new organic pesticide.

这些野果是天然的，没有农药。

These wild fruit are natural and pesticide-free.

这种农药对抗霜霉病非常有效。

This pesticide is very effective against downy mildew.

农民们正在田里喷洒农药。

The farmers are spraying pesticides in the fields.

农民喷洒了农药以保护庄稼。

The farmer sprayed pesticides to protect the crops.

农民在喷洒农药以保护庄稼。

The farmer is spraying pesticides to protect the crops.