常見例句Farm workers frequently come in contact with these insecticides.農(nóng)場(chǎng)工人常常接觸這些殺蟲劑。They observed how the crops reacted to these insecticides.他們觀察了莊稼對(duì)這些殺蟲劑有什么反應(yīng)。 返回 insecticides