peptide growth factors的用法和樣例：
例句
- Viruses are the most major pathogens of shrimp, and they can induce high morbidity, mortality and growth retardation in cultured shrimp.
病毒為蝦病最主要的病原之一，不僅具有高發病率及高死亡率，且會造成蝦類生長遲緩。 - Such growth shall continue in the centuries ahead until we have created a fourth dimensional form that shall be ascended into, relinquishing life in the third dimension altogether.
這類生長，將會在前方數個世紀不斷持續，直到我們創建了一個第四維度的身體來提升進入而放棄第三維度的所有生命為止。
