[英][?defnn][美][?d?fn?n]
n.定義; 規定，明確; [物]清晰度; 解釋;
復數：definitions
例句:
1.
Economists can debate the precise definition.
經濟學家可以就確切定義展開辯論。
2.
So earlier this year congress asked its research service to come up with a definition ofmiddle class.
所以在今年早些時候，國會要求其下屬的研究機構給中產階級做壹個界定