Filtrations
(filtration 的复数) n. 过滤\\n[化] 过滤
🗣️ 情景例句
It seems I owe you an apology.
好像我该向你道个歉。
What's this?
这是什么？
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一种能够燃烧而不能爆炸的气体，一种味道不很强的而且不使人致死的气体。