(1) take off
① (飞机)起飞 A helicopter is able to take off and land straight up or down.
② 脱下(衣裳等);取下 He took off his wet shoes.
Who took the knob off the door?
③ 休假;请假;歇工 When his wife was sick he took off from work.
④ (指观念、产品) 大受欢迎;(事业)突然发达，成功The new type of cell phones has really taken off.
His business began to take off when he was in his forties.
(2) take down
① 拿下来;取下来 He reached up to the third shelf of the bookcase and took down a dictionary.
② 记下来 He read out the names and his secretary took them down.
(3) take in
① 接受 (房客，客人等);收留 The farmers took in the lost travelers for the night.
② 理解;领会;明白 The boys could not take in his meaning.
③包括;涉及 The study of physics takes in many different subjects.
④使上当;欺骗We were completely taken in by her story.
(4) take on
① 接受;从事(某工作) After his father died, Bill took on the management of the factory.
② 雇用Is the supermarket taking on any more assis- tant?
③ 具有(新面貌、意思等) The city has taken on a new look.
(5) take up
① 从事某项活动;发展某种爱好 So many young men want to take up writing.
② 开始做(某项工作);开始学习(某个课程) Then she took up the task of getting the breakfast.
He dropped medicine and took up physics.
③ 占去 (时间或空间) The meeting took up the whole morning.
The table takes up too much room.
I'd like to take up your offer of a ride into town.