常見例句Football is our most popular spectator sport. 足球是最受我們歡迎、最能吸引觀眾的一項運動。A tyre expands when you pump air into it. 輪胎一打氣就鼓起來。Lashing velocity of pump is concerned with nature of air. 泵的抽氣速率與氣體的性質(zhì)有關(guān)。This tire is flat; you didn't pump enough air in. 這個輪胎沒氣了;你并沒打足氣。We have a pump for drawing water from the well. 我們用一個水泵從井里抽水。The heart is analogous to a pump. 心臟和水泵有相似之處。 返回 spectator pump