nóng / mín / àn / zhào / shuō / míng / shū / gěi / mián / huā / pēn / sǎ / ǎi / zhuàng / sù / yǐ / kòng / zhì / zhí / zhū / gāo / dù

农民按照说明书给棉花喷洒矮壮素，以控制植株高度。

The farmers sprayed chlormequat on the cotton plants according to the instructions to control their height.