Celyphidae
甲蝇科
🗣️ 情景例句
It's too hard to explain.
这很难解释清楚。
Ask-Bob-to sit-behind-me.
让鲍伯坐在我后面。[省略了四个音]
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。