1、appreciate 后不直接跟if或when引導(dǎo)的狀語從句，需借助it形式賓語，這種句型只是客氣語氣，并非虛擬語氣類似還有如下例句\x0d\x0aI would appreciate it if you paid in cash如果現(xiàn)金支付，感激不盡\x0d\x0aI#39d；十五個萬能演講句...