Fluorinator
氟化器
??? 情景例句
They all work hard, without exception.
他們個個努力工作，無一例外。
A good head and an industrious hand are worth gold in any land.
聰明腦袋勤勞手，走遍天下貴如金。
I agree. Which museum would you like to visit?
我同意。你想參觀哪個博物館呢？