他本不該把車開得那么快。
He oughtn't to have been driving so fast.
你怎么這么快就過來了？
How ever did you get here so quickly?
熱帶地區(qū)黑夜來得快。
Night descends quickly in the tropics.
我們的貨物周轉(zhuǎn)快。
We have a fast turnover of stock.
孩子比大人學(xué)得快。
Children learn faster than adults.