necessity是什么意思

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

查字典应该很容易知道的吧~~

用的比较多的是必需品的意思