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N-MASS
草；青草
Grass is a very common plant consisting of large numbers of thin, spiky, green leaves that cover the surface of the ground.
例句
Small things stirred in the grass around the tent...
一些小东西在帐篷四周的草丛里窸窸窣窣地动着。
The lawn contained a mixture of grasses.
草坪上生长着各种青草。
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N-SING
草地；草坪；草场
If you talk about the grass, you are referring to an area of ground that is covered with grass, for example in your garden.
例句
In the old days, there were strict fines for walking on the grass or missing a study period...
过去，踩踏草坪或旷课都会被重金处罚。
I'm going to cut the grass.
我要去修剪草坪了。
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N-UNCOUNT
同marijuana
Grass is the same as marijuana .
例句
I started smoking grass when I was about sixteen.
我大约16岁的时候开始吸大麻。
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VERB
（向警方等）揭发，告发
If you say that one person grasses on another, the first person tells the police or other authorities about something criminal or wrong which the second person has done.
例句
His wife wants him to grass on the members of his own gang...
妻子要他向警方告发他所在团伙的成员。
He was repeatedly attacked by other inmates, who accused him of grassing.
他屡遭指责他告密的其他囚犯的殴打。
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N-COUNT
告密者；揭发者
A grass is someone who tells the police or other authorities about criminal activities that they know about.
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PHRASE
草是那边绿；这山望着那山高
If you say the grass is greener somewhere else, you mean that other people's situations always seem better or more attractive than your own, but may not really be so.
例句
He was very happy with us but wanted to see if the grass was greener elsewhere.
他对我们感到十分满意，但还想看看是否有更合适的人选。
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PHRASE
（因年老等）被辞退，遭解雇
If you say that someone is being put out to grass, you mean they are no longer being employed because they are considered to be too old or no longer useful.
例句
The Prime Minister refused to be put out to grass. Asked if he would quit, he replied: 'The answer is No'.
首相拒绝被解除职务，当问到他是否会辞职时，他说，“我的回答是不。”