生长激素帮助儿童骨骼和肌肉发育。

Growth ___hormones help children develop their bones and muscles.

医生建议她服用激素来调节月经周期。

The doctor suggested she take ___hormones to regulate her menstrual cycle.

一些园丁使用植物激素来促进蔬菜更快生长。

Some gardeners use plant ___hormones to make vegetables grow faster.