B1 used in negative sentences instead of "also" or "too"(用于否定句)也
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I've never been here before either, so it's all strange to me too.
We certainly don't lead a life of luxury but we're not poor either.
"And the dress that you bought me doesn't fit either!" she shouted as she walked off.
Actually I'm pleased you don't want to go, because I don't either.
I'm not allowed another piece of cake, so you're not either!
B1 used when referring to a choice between two possibilities(两种可能性的选择)要么…要么,不是…就是,或者…或者;(两者中)任何一个
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You can move the cursor either by using the mouse or by using the arrow keys on the keyboard.
She either loves you or hates you - it's all or nothing with her.
We got caught in pouring rain without either raincoats or umbrellas.
He's either a hero or a villain, depending on your point of view.
It's either Spanish or Portuguese that she speaks, but I've forgotten which.
B2 both(两者中)每个,各方
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We have students living on either side of us.
I had children on either side of me.
Company directors were seated on either side of me so I was on best behaviour.
I was lucky because I had friends sitting on either side of me on the plane.
We have family living on either side of us.
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