key

• 指非常重要、关键或起决定作用的。

Describes something that is very important, essential, or crucial.

1. Crucial or essentialB1formal

   Of paramount importance; critical to the success or understanding of something.

   关键的

   • Communication is a key factor in any relationship.
   • The key ingredient in this recipe is fresh basil.
   • Finding a good mentor is key to career development.

   同义词centralcriticalcrucialessentialfundamentalimportantindispensablenecessarypivotalvital

   反义词inessentialminorperipheraltrivialunimportant

2. Main or primaryB1formal

   Being the most important or central element.

   主要的

   • The key point of her argument was about equality.
   • He holds a key position in the company.
   • The key question remains unanswered.

   同义词centralcorecrucialessentialfundamentalimportantmainprimaryprincipalvital

   反义词minorperipheralsecondarysubordinateunimportant

• 名词，指用于开锁的小型金属物件，也指操纵机械或乐器的装置，如键盘或钢琴的键。

A noun referring to a small piece of metal used for opening locks, or a device used for operating a mechanism such as a keyboard or piano.

1. Tool for locksA1formal

   A small metal instrument used to open or close a lock.

   钥匙

   • I lost my house key and had to call a locksmith.
   • She turned the key in the ignition to start the car.
   • He keeps his spare key under the doormat.

2. Keyboard buttonA1formal

   One of the buttons on a keyboard or typewriter.

   键

   • Press the Enter key to confirm your selection.
   • The space key is the longest key on the keyboard.
   • He accidentally hit the wrong key and deleted the file.

   同义词button

3. Crucial elementB1formal

   Something that is essential or critical for achieving a result.

   关键要素

   • Hard work is the key to success.
   • The key to solving this puzzle is patience.
   • Communication is a key factor in any relationship.

   同义词basiscorecornerstonecruxessentialfoundationheartlinchpinprerequisiterequirement

4. Musical keyB1formal

   A set of notes based on a particular note, forming the basis of a piece of music.

   调

   • The song is written in the key of C major.
   • She played the piece in a different key.
   • The key signature indicates which notes are sharp or flat.

   同义词modescaletonality

5. Answer or solutionA2formal

   A guide or explanation that provides the correct answers.

   答案或解答

   • The teacher provided the answer key for the test.
   • Check the key at the back of the book for solutions.
   • The key to the crossword puzzle is on the last page.

   同义词answerexplanationguidesolution

   反义词enigmamysteryproblempuzzlequestion

• 动词，指用键盘输入数据；也指用钥匙调节或固定某物。

A verb meaning to enter or input data using a keyboard, or to adjust or secure something with a key.

1. Enter dataA2formal

   To enter or type information into a device, such as a computer or keyboard.

   输入数据

   • She keyed the data into the spreadsheet.
   • He keyed in the password to access the system.
   • Please key your responses into the online form.

   同义词enterinputkeyboardtype

2. B2formal

   To adjust or align something to fit a specific requirement or standard.

   调整

   • The design was keyed to the client's specifications.
   • The marketing strategy is keyed to the target audience.
   • The software is keyed to work with older operating systems.

   同义词adaptadjustaligncalibratefitsuittune

   反义词derangedisarrangemisalign

短语动词变体key out