Cetology
n. 鲸类学
🗣️ 情景例句
My career as a fashion designer
时装设计事业
He who rides a tiger is afraid to dismount.
骑虎者难下。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，