【key音标】 英[ki:] 美[ki:]
【单词释义】 key是什么意思：
n.钥匙；（打字机等的）键；密钥；答案；关键，线索，秘诀；（音乐的）调
vt.键入；锁上；调节…的音调；提供线索
vi.使用钥匙
adj.关键的；主要的
[单词分级] 中考英语词汇
[单词复数] keys [第三人称单数] keys
[单词现在分词] keying
[单词过去式] keyed
[单词过去分词] keyed
【近义词解析】
◇ 答案
answer (n. 答案)：指试题、竞赛题等的答案，也可指某一问题的解决办法。What is the answer to question 5?
key (n. 答案，题解)：主要指习题、难题等的答案。I don't know the key to the puzzle.
solution (n. 解决方法)：指解决问题、难题的办法，也可指练习题、竞赛题等的答案，常可与 answer 换用。
【单词例句】
◇ Then she saw a little glass table with three legs,and on the top of it was a very small gold key.
。接着她看见一张三条腿的小玻璃桌，上面放了一把很小的金钥匙。
---- Alice's Adventures in Wonderland (1)
◇ Indeed, he had twelve coffins made. They were filled with wood shavings and each was fitted with a coffin pillow. He had them put in a locked room, and gave the key to the queen, ordering her to tell no one about them.
国王不只是说说而已，他甚至让人做了十二副棺材，在棺材里装满刨花，还在里面放上一个小寿枕。他让人把棺材全部锁进一个密室，把秘室的钥匙交给王后，不许她告诉任何人。
---- The Twelve Brothers
◇ In the lock there was a rusty key, and when she turned it the door sprang open. There in a small room sat an old woman with a spindle busily spinning her flax.
门上插着一把生锈的钥匙。当她转动金钥匙时，门一下子就弹开了，一个老太婆坐在里面在忙着纺纱。
---- Little Brier-Rose
◇ After all, our kidneys and liver depend on water to get rid of toxins in our bodies, and water also plays a key role in maintaining skin's elasticity and suppleness. It's the cheapest moisturizer you'll find.
毕竟，我们的肾和肝依靠水来排除身体里的毒素，而且水对于保持皮肤的弹性和柔软也起到了关键作用。水是你能找到的最便宜的润肤品。
---- Which drink is best for hydration? Hint: It isn't water
◇ First, make sure you're wearing well-fitting exercise clothing and sturdy shoes. Before getting on the machine, warm up with stretches and range-of-motion exercises, said Clark Stevenson, owner of Treadmill Doctor, a treadmill repair company based in Memphis, Tennessee. Then step onto the machine and securely attach the safety key to your shirt. If you should become at risk of falling off of the treadmill, the safety key will immediately turn off the machine.
首先，你要确保自己穿上合体的运动服和结实的鞋子。总部在美国田纳西州孟菲斯市的跑步机修理公司“跑步机医生”的老板克拉克·史蒂芬森指出，上跑步机前要先做几组拉伸和全范围关节运动来热身；上跑步机后要先把安全按钮牢牢固定在自己穿的T恤上。如果你要从跑步机上摔下来，安全按钮会立刻让机器停止运转。
---- How to use treadmills safely
◇ These costs are especially high in the last kilometre of a delivery, where precision is key and a customised service is required to get the product to the front door.
最后一公里的人力配送成本尤其高，因为把货物送到顾客家门口的关键是精准度以及定制服务。
---- 'Little yellow horse' robot delivers useful service in China
◇ Another key to getting better sleep is not letting outside influencers impair your sleep.
睡个好觉的另一个关键因素是别受外在事物影响。
---- Bad habits you should break
◇ What could she do now? She wanted to rescue her brothers, but she had no key to the glass mountain.
怎么办呢？她要救哥哥，可又没有了玻璃山城堡的钥匙。
---- The Seven Ravens