pump up [pʌmp ʌp]

以下由轻松背单词网站提供

使激动，使达到兴奋状态；打气；泵送

He oiled his bike and pumped up the tyres.他给自己的自行车上了油，给轮胎充了气。
Pump up the tires hard before going out on the road.上路之前先把轮胎打足了气。