Dioeciousness
n. dioecious的变形
🗣️ 情景例句
The costs of college get higher every year.
学费逐年增加，越来越贵。
To teeter-totter
玩跷跷板
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。