vastKK [ˋvæst] /ˈvæst/發音形容詞1廣大的、遼闊的、廣闊的We drove for hours across a vast desert without seeing anyone.我們在遼闊的沙漠中開了好幾個小時的車,一個人也沒遇到。2大量的、龐大的、巨額的The company spends a vast amount of money on advertising each year.這家公司每年在廣告上投入大量金錢。3極大的、懸殊的There is a vast difference between reading about it and doing it.讀到這件事和親自去做,兩者差別極大。