Hypovalve
下瓣
🗣️ 情景例句
IT is no longer the growth industry it once was.
信息科技业的增长不再像以前那样快。
This is a schedule.
这是一张时间表。
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。