Fluorochloroparaffins
氟氯鏈烷烴
??? 情景例句
I only buy used books.
我只買舊書。
How many more minutes will it take for the train to arrive?
火車還要多少分鐘就要到達呢？
I think the blue dress is prettier.
我認為那件藍色的更漂亮些。