derive v. 得自，起源
例句：All unconsciously the ideas they derive from the printed page are stored up.
他们源自书本上的知识全部不知不觉之中积累起来。
deprive vt. 剥夺，使丧失
例句：The big trees outside the windows deprive the house of light.
窗外的树木使房子里失去了光亮。
strive v. 努力，奋斗，力争，斗争
例句：The scientists strive for a breakthrough in heart diseases research.
科学家们力争在癌症研究方面有个突破。
thrive v. 兴旺，繁荣，茁壮成长，旺盛
例句：It is said that a business cannot thrive without good management.
人们说，没有良好的经营管理，事业就不会兴旺发达。
contrive v. 发明，设计，图谋，设法做到
例句：The couple contrived to bring up their daughter on a small income.
这对夫妻设法以菲薄的收入把女儿抚养成人。
