limit /ˈlimit/ I. vt. 限制，限定：The author will limit himself to a discussion of these two topics. 作者只准备讨论这两个题目。 ‖II. n.［c］界线；限度：within the limits of 在…的范围内；without limit 无限(制)地 There is no limit to his ambition.他的野心没有限制。
limitation /limiˈteiʃən/ n. ［c］ & ［u］ 限制，限度，局限：arms limitation 军备限制；owing to the limitation of space 限于篇幅；a limitation on imports 进口限制 Each man has his limitation. 人各有所不能。
limited /ˈlimitid/ adj. 1.(作表语)有限：limited in ability(intelligence) 能力有限（智力差）； limited for time 时间有限The number of passengers is limited to fifteen. 只限15 名乘客。The amount of money is very limited. 我们的钱是有限的。2. (作定语)有限的：a limited liability 责任有限；limited company 有限公司；a man of limited ability一个能力有限的人
