derive v. 得自，起源

　　例句：All unconsciously the ideas they derive from the printed page arestored up.

　　他們源自書本上的知識全部不知不覺之中積累起來。

　　deprive vt. 剝奪，使喪失

　　例句：The big trees outside the windows deprive the house of light.

　　窗外的樹木使房子里失去了光亮。

　　strive v. 努力，奮斗，力爭，斗爭

　　例句：The scientists strive for a breakthrough in heart diseases research.

　　科學家們力爭在癌癥研究方面有個突破。

　　thrive v. 興旺，繁榮，茁壯成長，旺盛

　　例句：It is said that a business cannot thrive without good management.

　　人們說，沒有良好的經營管理，事業就不會興旺發達。

　　contrive v. 發明，設計，圖謀，設法做到

　　例句：The couple contrived to bring up their daughter on a small income.

　　這對夫妻設法以菲薄的收入把女兒撫養成人。