时间: 2025-04-25 14:05:06
美: [fæst]
英: [fɑːst]
adj. 快速的，迅速的；紧的，稳固的
adv. 迅速地；紧紧地；彻底地
vi. 禁食，斋戒
n. 斋戒；绝食
n. (Fast)人名；(德、英、俄、芬、捷、瑞典)法斯特
最后更新时间:2025-04-25 14:05:06
字面意思：
"fast" 的字面含义是“迅速的”或“快速的”。
清晰定义：形容词，表示某物或某人**或完成某事的速度很快。
词性：
形容词（adjective），副词（adverb），名词（noun），动词（verb）。
词源分析：
"fast" 源自古英语 "fæst" ，意为“坚固的”或“稳定的”。其词根与“固定”或“牢牢保持”的概念有关。
历史背景：
该词首次使用的记录可以追溯到古英语时期，主要用于描述时间、速度或某物的状态。
课本：
在**的英语教材中，"fast" 通常出现在初中和高中阶段的词汇表中。在牛津大学和美国的教材中，"fast" 可能在小学至高中阶段的课本中出现，尤其是在描述动作、交通等的单元。
正式与非正式语境：
特殊场合：
She is a fast learner.
她是一个学*很快的人。
The train travels fast.
火车行驶得很快。
I need to finish this task fast.
我需要快速完成这个任务。
He made a fast decision.
他做出了一个迅速的决定。
The fast-paced nature of the job is exciting.
工作的快节奏性质令人兴奋。
*. The athlete ran the marathon in a fast time.
这位**员以快速的时间完成了马拉松。
We need fast action to solve this issue.
我们需要迅速采取行动来解决这个问题。
The fast food industry is booming.
快餐行业正在蓬勃发展。
It's important to drive fast in emergencies.
在紧急情况下，快速驾驶是很重要的。
The movie has a fast plot that keeps you engaged.
这部电影情节紧凑，让你保持投入。
同义词：
反义词：
选择 音标记忆法：
通过这些关联词汇，可以帮助用户更深入地理解 "fast" 的使用和意义。
[ADJ] Fast means happening, moving, or doing something at great speed. You also use fast in questions or statements about speed. 迅速的
例：...fast cars with flashing lights and sirens.…闪灯、鸣笛、快速行驶的汽车。
例：The only question is how fast the process will be.惟一的问题是这个过程会有多快。
[[ADV with v]] Fast is also an adverb. 迅速地
例：They work terrifically fast.他们工作极快。
例：It would be nice to go faster and break the world record.再快一些，打破世界纪录就好了。
例：How fast would the disease develop?这种疾病发展有多快？
[[v-link ADJ]] If a watch or clock is fast, it is showing a time that is later than the real time. (钟表) 快于准确时间的
例：That clock's an hour fast.那个钟快了一个小时。
[ADJ] If colours or dyes are fast, they do not come out of the fabrics they are used on when they get wet. 不褪色的
例：The fabric was ironed to make the colours fast.这布被熨烫过以使其不褪色。
[[ADV after v]] You use fast to say that something happens without any delay. 毫不耽搁地
例：When you've got a crisis like this you need professional help – fast!.在遇到这样的危机时，你需要专业的救助–丝毫不能耽搁！
[[ADJ n]] Fast is also an adjective. 毫不耽搁的
例：That would be an astonishingly fast action on the part of the Congress.那将是国会方面一次快得惊人的行动。
[[ADV after v]] If you hold something fast, you hold it tightly and firmly. If something is stuck fast, it is stuck very firmly and cannot move. 紧紧地
例：She climbed the staircase cautiously, holding fast to the rail.她紧握扶手，小心翼翼地爬上楼梯。
[[ADV after v]] If you hold fast to a principle or idea, or if you stand fast, you do not change your mind about it, even though people are trying to persuade you to. 坚定地
例：We can only try to hold fast to the age-old values of honesty, decency and concern for others.我们只能努力坚守那些古老的价值观：诚实、正派、关心他人。
[V-I] If you fast, you eat no food for a period of time, usually for either religious or medical reasons, or as a protest. (因宗教、医疗或抗议等原因) 禁食
例：I fasted for a day and a half and asked God to help me.我禁食了一天半，请求上帝帮助我。
[N-COUNT] Fast is also a noun. 禁食
例：The fast is broken at sunset, traditionally with dates and water.日落时开斋，按传统会吃海枣、喝水。
[N-UNCOUNT] fasting 禁食
例：...the Muslim holy month of fasting and prayer.…穆斯林斋戒和祈祷的圣月。
[PHRASE] Someone who is fast asleep is completely asleep. 熟睡
例：When he went upstairs five minutes later, she was fast asleep.他5分钟后上楼时，她已熟睡。