英音 [ki:] 美音 [ki]
metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
something crucial for explaining;
"the key to development is economic integration"
pitch of the voice;
"he spoke in a low key"
any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
a kilogram of a narcotic drug;
"they were carrying two keys of heroin"
a winged often one-seed indehiscent fruit as of the ash or elm or maple
United States lawyer and poet who wrote a poem after witnessing the British attack on Baltimore during the War of 1812; the poem was later set to music and entitled `The Star-Spangled Banner' (1779-1843)
a coral reef off the southern coast of Florida
(basketball) a space (including the foul line) in front of the basket at each end of a basketball court; usually painted a different color from the rest of the court;
"he hit a jump shot from the top of the key"
"he dominates play in the paint"
a list of answers to a test;
"some students had stolen the key to the final exam"
a list of words or phrases that explain symbols or abbreviations
a generic term for any device whose possession entitles the holder to a means of access;
"a safe-deposit box usually requires two keys to open it"
mechanical device used to wind another device that is driven by a spring (as a clock)
the central building block at the top of an arch or vault
a lever (as in a keyboard) that actuates a mechanism when depressed
serving as an essential component;
"a cardinal rule"
"the central cause of the problem"
"an example that was fundamental to the argument"
"computers are fundamental to modern industrial structure"
identify as in botany or biology, for example
provide with a key;
"We were keyed after the locks were changed in the building"
vandalize a car by scratching the sides with a key;
"His new Mercedes was keyed last night in the parking lot"
regulate the musical pitch of
harmonize with or adjust to;
"key one's actions to the voters' prevailing attitude"
keyboard n. 键盘;琴键;电子琴; vt. 用键盘输入;用键盘式排字机排字; vi. 用键盘进行操作;作键盘式排字机排字;
keyhole n. 锁眼，钥匙孔;
keynote n. 主旨，基调;<音>主音; vt. 给…定基调;说明基本政策; vi. 作主旨发言;〈美〉在（会议等场合）发表施政方针;
keynoter n. 定基调的人;
keypad n. 键区;
keypunch vi. 用打孔机打孔;
keystone n. 重点;要旨;基本原理;拱心石;
keystroke n. 键击，按键;
keyway n. 扁形钥孔，键沟;
keyword n. 关键字;关键词;
key contact 主要接触;
heavy key 重关键组分;
flange key 法兰扳手;
tangential key 切向键;
listening key 监听键;
sliding key 滑键;
invalid key 无效键，无用键;
passing key 共用电锁，总电键;
key information 电键信息;
key signature n. 音调符号;
key out 切断，断开;
secondary key encrypting key 辅助加密键，辅助键加密键;
storage key memory key 存储键;
tooth key [医] 拔牙键;
key level n. 功能键级别;
key on 接通;
pulley key 皮带轮键;
key touch [医]击键（计算机、电脑等打字录入）;
bell key 电铃电键;
key trench 坝基截水墙槽;