expel
/ɪkˈspel; ɪk`spɛl/ v
(-ll-) [Tn, Tn.pr]
~ sb (from sth)
1 force sb to leave (esp a country, school or club) 强迫（某人）离开（尤指国家、 学校或会所）; 驱逐; 赶走; 开除
Following reports of drug-taking at a boarding-school, several senior boys have been expelled. 自从某寄宿学校传出有人吸毒之後, 高年级有几个男生已被开除.
Two attaches at the embassy were expelled from the country. 大使馆的两名随员已驱逐出境.
2 send or drive (sth) out by force 用力排出或驱出（某物）
expel smoke from the lungs 用力呼出肺里的烟
a fan in the kitchen for expelling cooking smells 为排出烹调气味而安装於厨房中的电扇.