vegetative cycle的用法和樣例：
例句
- This can cut your hair's growing cycle short so the hair will only grow to a certain length before shedding.
這可能縮短你的頭發(fā)生長(cháng)周期，使得頭發(fā)在脫落前只長(cháng)到某一長(cháng)度就停止生長(cháng)了。 - Let us survey the growth promoters and growth inhibitors separately, then see how they interact to regulate a plant's life cycle.
我們將分別研究生長(cháng)促進(jìn)劑和抑制劑，然后看看它們是怎樣交互作用調節植物的生長(cháng)周期。
