时间: 2025-04-24 23:21:13
英: [kiː]
n. （打字机等的）键；关键；钥匙
vt. 键入；锁上；调节…的音调；提供线索
vi. 使用钥匙
adj. 关键的
n. (Key)人名；(英)基；(德、荷、瑞典)凯
最后更新时间:2025-04-24 23:21:13
key是一个名词，通常指用于开启锁的物品；引申义上，它也可以表示某种重要的东西或解决方案。词源分析：key源自古英语单词“cāg”，该词与日耳曼语的词根相联系，意为“开启”或“解锁”。它的词根部分“k”与“c”在不同语言中有相似的发音。
历史背景：key一词在英语中的首次书面记录可以追溯到公元前8世纪的某些古代文献。
课本：在**的英语教材中，key通常出现在小学及初中的阶段，如《新概念英语》、牛津英语等教材中。美国的教材中，key常在小学的基础词汇表中出现。
正式与非正式语境：
key可以指某个重要的因素或数据。例如：“The key to success is hard work.”（成功的关键在于努力工作。）key常用于比喻，如：“He is the key player in our team.”（他是我们团队的关键人物。）特殊场合：
key可以用于指代某个重要证据或文件。例如：“The key evidence led to the conviction.”（关键证据导致了定罪。）key可能指代一种关键的实验或发现，如：“The discovery was a key breakthrough in medical research.”（这一发现是医学研究中的关键突破。）The key to the door was missing.
门的钥匙不见了。
She is the key to our success.
她是我们成功的关键。
The key findings of the study were published in a journal.
该研究的关键发现发表在了期刊上。
He used a key to unlock the treasure chest.
他用钥匙打开了宝箱。
Understanding the key concepts is essential for the exam.
理解关键概念对考试至关重要。
*. This formula is key to solving the problem.
这个公式是解决问题的关键。
The key signature indicates the key of the music.
调号指示了音乐的调性。
In this context, 'key' refers to something important.
在这个语境中，“key”指的是某个重要的东西。
You need a key to access the building after hours.
你需要一把钥匙才能在下班后进入大楼。
The key difference between these two theories is...
这两种理论之间的关键差异是...
同义词：
essential（必不可少的）：强调某事物的重要性。crucial（关键的）：通常用于表示某事物在结果中的决定性作用。反义词：
insignificant（微不足道的）：表示某事物不重要。trivial（琐碎的）：强调某事物的无关紧要。key的发音 /kiː/，可以通过反复朗读，帮助记忆。keyboard、keynote）进行联想记忆。keynote（主题演讲）keypad（数字键盘）keychain（钥匙链）keyholder（钥匙持有者）keynote speaker（主题发言人）通过这些分析，学*者可以更全面地理解和应用key这个单词。
[N-COUNT] A key is a specially shaped piece of metal that you place in a lock and turn in order to open or lock a door, or to start or stop the engine of a vehicle. 钥匙
例：They put the key in the door and entered.他们用钥匙开了门然后走了进去。
[N-COUNT] The keys on a computer keyboard or typewriter are the buttons that you press in order to operate it. 键
例：Finally, press the Delete key.最后，按删除键。
[N-COUNT] The keys of a piano or organ are the long narrow pieces of wood or plastic that you press in order to play it. 琴键
例：...the black and white keys on a piano keyboard.…一架钢琴键盘上的黑白琴键。
[N-VAR] In music, a key is a scale of musical notes that starts on one specific note. 调
例：...the key of A minor.…A小调。
[N-COUNT] The key on a map or diagram or in a technical book is a list of the symbols or abbreviations used and their meanings. 略语记号
例：You will find a key at the front of the book.你在书的前面会看到一个略语记号。
[[ADJ n]] The key person or thing in a group is the most important one. 关键的
例：He is expected to be the key witness at the trial.预计他将成为审判时的关键证人。
[N-COUNT] The key to a desirable situation or result is the way in which it can be achieved. 关键
例：The key to success is to be ready from the start.成功的关键是从一开始就做好准备。
[N-COUNT] A key is a small low island or reef, especially one in the Gulf of Mexico. (尤指墨西哥湾内的) 低岛; 礁
例：...the Florida Keys.…佛罗里达群岛。