Trichmonad
毛滴蟲
??? 情景例句
Will dinner be served on this train?
火車上供飯嗎？
When the weather is hot, we turn on the air conditioner.
天熱的時候就開空調。
The airport was built years ago, but for some reason it could not be used then.
機場是許多年前建的，但由于某種原因當時未能啟用。