B1 the surface of the earth地,地面
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Cracks had appeared in the dry ground.
The plane dived towards the ground and exploded in a ball of flame.
A post had been driven into the ground near the tree.
The nuclear waste has been entombed in concrete many metres under the ground.
At the end of the race his legs gave out and he collapsed on the ground.
B1 [ C ] an area of land used for a particular purpose or activity(有特殊用途的)地域,场地
C2 the gardens and land that surround a building and often have a wall or fence around them(常由墙或栅栏围起来的建筑物周围的)庭院,场地,花园
C2 [ C usually plural ] a reason, cause, or argument原因,根据,理由
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There should be no discrimination on the grounds of colour.
Do you have any grounds for complaint ?
The accused pleaded not guilty on grounds of diminished responsibility.
He refused to say anything on the grounds that he might incriminate himself.
She is suing the company on grounds of unfair dismissal.
C2 [ U ] an area of knowledge or experience(知识、经验等的)领域,范围;学科
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The debate is becoming polarized and there seems to be no middle ground.
I think you're on very shaky ground with that argument.
He's annoying to argue with because he keeps shifting his ground.
The party has watered down its socialist ideals in order to appeal to the centre ground.
We covered a lot of ground in the first few weeks of the course.
[ C usually singular ] US UK earth a wire that makes a connection between a piece of electrical equipment and the ground, so the user is protected from feeling an electric shock if the equipment develops a fault地线
the small grains of coffee left at the bottom of a cup or other container that has had coffee in it咖啡渣
past simple and past participle ofgrind (grind的过去式及过去分词)
If a ship is grounded, it cannot move because it has hit solid ground.使(船)搁浅
[ T often passive ] If aircraft are grounded, they are prevented from flying or ordered not to fly.禁止…飞行;使停飞
[ T ] to forbid (= refuse to allow) a child or young person from going out as a punishment罚(孩子)不许出门
[ T usually passive ] US UK earth to connect a piece of electrical equipment to the ground with a wire把(电线)接地
to be based firmly on something根据,基于
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