1、necessityKK: []DJ: []n.1. 需要,必要性[U][S1][(+of/for)]She felt the necessity of accepting the invitation.她感到必须接受这一邀请。

2、2. 必需品[C][(+of/for)]Television is considered a necessity by a lot of people.许多人认为电视是一件生活必需品。

3、3. 必然(性)[U][S1]Night follows day as a necessity.白天过去,夜幕降临,这是必然的。

4、4. 贫穷;困难[U]This family is in great necessity.这户人家穷困到极点。