Question

unnecessary adj.不必要的；多余的 (1) 勿做不必要的花费。(2) 她常在不必要的琐事上自扰。(3) 所有这些完全都是多余的。(4) 把多余的枝叶剪去。 If you don't need something, it's unnecessary. You take an unnecessary risk if you get in the car and don't bother to fasten your seatbelt. Driving your car when you could ride a bike instead is an unnecessary use of gasoline. If you keep dropping you pen in class, your teacher might say, "That's unnecessary." Walking your dog with two leashes is definitely unnecessary. That's obvious, but lots of times it's hard to tell what's necessary and what's unnecessary.

Accepted Answer

英 [ʌn'nesəsəri] 美 [ʌn'nesəseri] (1) Don't involve yourself in unnecessary expense.(2) She often pothers herself over unnecessary details.(3) All this is totally unnecessary.(4) Cut off the unnecessary twigs and branches. Anything that is extra or not needed is unnecessary. Wearing long underwear in July is an unnecessary precaution against being cold. 1[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不需要的；没必要的；多余的 If you describe something as unnecessary, you mean that it is not needed or does not have to be done, and is undesirable. The slaughter of whales is unnecessary and inhuman...屠杀鲸鱼是没有必要的也是不人道的。He accused Diana of making an unnecessary fuss.他责备黛安娜没必要那么大惊小怪。unnecessarilyI didn't want to upset my husband or my daughter unnecessarily...我不想让我的丈夫和女儿不必要地担忧。A bad keyboard can make life unnecessarily difficult.一个坏键盘可以让生活变得异常麻烦。

英语单词	unnecessary
英美音标	英 [ʌn'nesəsəri] 美 [ʌn'nesəseri]
中文释义	adj.不必要的；多余的
英语例句	(1) Don't involve yourself in unnecessary expense. (2) She often pothers herself over unnecessary details. (3) All this is totally unnecessary. (4) Cut off the unnecessary twigs and branches.
中文例句	(1) 勿做不必要的花费。 (2) 她常在不必要的琐事上自扰。 (3) 所有这些完全都是多余的。 (4) 把多余的枝叶剪去。
vocabulary简明	Anything that is extra or not needed is unnecessary. Wearing long underwear in July is an unnecessary precaution against being cold.
vocabulary扩展	If you don't need something, it's unnecessary. You take an unnecessary risk if you get in the car and don't bother to fasten your seatbelt. Driving your car when you could ride a bike instead is an unnecessary use of gasoline. If you keep dropping you pen in class, your teacher might say, "That's unnecessary." Walking your dog with two leashes is definitely unnecessary. That's obvious, but lots of times it's hard to tell what's necessary and what's unnecessary.
柯林斯解释	1 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不需要的；没必要的；多余的 If you describe something as unnecessary, you mean that it is not needed or does not have to be done, and is undesirable. The slaughter of whales is unnecessary and inhuman... 屠杀鲸鱼是没有必要的也是不人道的。 He accused Diana of making an unnecessary fuss. 他责备黛安娜没必要那么大惊小怪。 unnecessarily I didn't want to upset my husband or my daughter unnecessarily... 我不想让我的丈夫和女儿不必要地担忧。 A bad keyboard can make life unnecessarily difficult. 一个坏键盘可以让生活变得异常麻烦。

Unnecessary Needed Car Unnecessarily 英 ʌn'nesəsəri] 美 ʌn'nesəseri Adj.不必要的；多余的