define

vt.

1. 精确地解释; 界定
   • Please define the words.
     请准确地解释这些字的意义。
   • They defined him as a rogue.
     他们确定他为骗子。
2. 规定, 确定
   • Please listen while I define your duties.
     在我规定你的职责时, 请仔细听好。
   • The powers of a judge are defined by law.
     法官的权限是由法律规定的。
   • It's hard to define exactly what has changed.
     很难解释清楚到底发生了什么变化。