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名词
n. 钥匙
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piece of metal that opens a lock
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I turned the key and opened the door.
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我转动钥匙，打开了门。
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I have a bunch of keys in my pocket.
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我衣袋里有一串钥匙。
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名词
n. 题解；答案
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set of answers to tests, etc.
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This book is the key for use of students only.
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这本书是专供学生用的题解。
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Check your answers with the key at the back of the book.
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把你的答案同书后的答案核对一下。
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名词
n. （钢琴、打字机等的）键；琴键
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part of a piano,a typewriter,etc.that you press with a finger
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A piano has black and white keys.
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钢琴上有黑白键。
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名词
n. 要口；要冲；要隘
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(also attrib.) place which from its position,gives control of aroute or area
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Gibraltar has been called the key to the Mediterranean.
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直布罗陀一直被称做地中海的门户。
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名词
n. 关键；谜底；决窍；线索
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that which solves a mystery, problem, etc; the secret or clue
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This is the key to the problem.
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这是问题的关键。
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It affords the key to an understanding of the situation.
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这提供了了解形势的线索。
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名词
n. （音乐）调
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(music) scale of notes definitely related to each other and based on a particular note called the key note
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This is a song written in the key of B flat.
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这是一首降B调的曲子。
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及物动词
vt. 调音；使有……语调；使有某种色调或色彩
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regulate the tone or pitch of
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He keys a violin.
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他给小提琴调音。
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及物动词
vt. 锁
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fasten with a key
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