fast的详尽释义是：adj.(形容词)敏捷的，快的，迅速的可靠的忠实的不褪色的牢实的，坚牢的，坚固的粘得紧的，固定的激烈的（钟表）走得快的感光快的迅速发生的，立即发生的。fast【近义词】quick。fast的读音是英[fɑːst]；美[fæst]。
一、详尽释义点此查看fast的详细内容
二、双解释义
三、词典解释
1.快的;迅速的
Fast means happening, moving, or doing something at great speed. You also usefast in questions or statements about speed.
e.g. ...fast cars with flashing lights and sirens...
闪着灯、鸣着笛、飞速行驶的车辆
e.g. Brindley was known as a very, veryfast driver...
众所周知，布林德利是个喜欢飞车的人。
2.迅速地;立即
You usefast to say that something happens without any delay.
e.g. When you've got a crisis like this you need professional help —fast!...
当你遇到这样的危急情况，就需要专业救援了——要快！
e.g. We'd appreciate your leaving asfast as possible.
如果您能尽快离开，我们将不胜感激。
3.(钟表)偏快的，走得快的
If a watch or clock isfast, it is showing a time that is later than the real time.
e.g. That clock's an hourfast.
那个钟快了一个小时。
4.紧紧地;牢牢地;死死地
If you hold somethingfast, you hold it tightly and firmly. If something is stuckfast, it is stuck very firmly and cannot move.
e.g. She climbed the staircase cautiously, holdingfast to the rail...
她紧紧地抓着栏杆，小心翼翼地爬楼梯。
e.g. The tanker is stuckfast on the rocks.
油轮紧卡在礁石中间动弹不得。
5.坚定地;毫不动摇地
If you holdfast to a principle or idea, or if you standfast, you do not change your mind about it, even though people are trying to persuade you to.
e.g. We can only try to holdfast 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。
e.g. He told supporters to standfast over the next few vital days.
他叫支持者在接下来的几个重要日子里站稳立场。
6.(颜色或染料)不褪色的，不掉色的
If colours or dyes arefast, they do not come out of the fabrics they are used on when they get wet.
e.g. The fabric was ironed to make the coloursfast.
为防止掉色，织物已经过熨烫。
7.骄奢淫逸的;刺激而快乐的
Afast way of life is one which involves a lot of enjoyable and expensive or dangerous activities.
e.g. Life in Detroit no longer satisfied him; he wanted thefast life of California.
他不再满意底特律的生活，想要过加利福尼亚那种刺激快乐的生活。
8.斋戒;禁食;绝食
If youfast, you eat no food for a period of time, usually for either religious or medical reasons, or as a protest.
e.g. I fasted for a day and half and asked God to help me.
我斋戒了一天半，祈求上帝伸出援手。
9.熟睡的;沉睡的
Someone who isfast asleep is completely asleep.
e.g. When he went upstairs five minutes later, she wasfast asleep.
他5分钟后上楼时，她已睡熟。
10.玩猫腻;玩弄
If you say that someoneis playing fast and loose, you are expressing disapproval of them for behaving in a deceitful, immoral, or irresponsible way.
fast的反义词
e.g. There have been people who have playedfast and loose with the rules.
有人在玩弄这些规则。
11.欺骗;哄骗;愚弄
If you say that someonehas pulled a fast one on you, you mean that they have cheated or tricked you.
e.g. No doubt someone had pulled afast one on her over a procedural matter.
无疑有人在程序性问题上骗了她。
12. to make afast buck -> see buck
fast lane -> see lane
四、例句
I like fast music.
我喜欢节奏快的音乐。
The star was whipped into a fast car and driven off.
那个明星迅速上了一辆汽车疾驶而去。
The post is fast in the ground.
那柱子牢牢地埋在地里.
He led a fast life.
他过着放荡的生活。
He ran fast enough to catch the thief.
他跑得飞快，足以抓住那小偷。
Bind the rope fast lest it should come loose.
把绳子绑牢，免得它松脱。
He is living too fast for his health.
他现在的生活过于放荡，于健康不利。
The boat was stuck fast in the mud.
那船深深地陷在泥里.
The priest had only water and bread during his three week fast.
牧师在三个星期的斋戒期间只进食水和面包。
So the meal that breaks your fast should be healthy and wholesome.
因此解除禁食的这一餐应该是健康有益的。
They have to fast from dawn to dusk.
他们一整天都得禁食。
Before the medical exam, you must fast.
在体检之前，你必须禁食。
五、常用短语
六、经典引文
She kept the yearly fast and went to the synagogue.
出自：H. SegalA remarkably fast sleeper.
出自：R. MacaulayThe girl sat very insecurely, clinging fast.
出自：D. H. Lawrence七、词义辨析
fast的相关近义词
quick、rapid、secure、solid、speedy、swift、tight、firmly、like a flash、quickly、rapidly、securely、speedily、swiftly、tightly
fast的相关反义词
crawling、dull、insecure、loose、slow
fast的相关临近词
fasten、fashionable、Fastr、FASTN、Fasta、Fasti、Fasth、Fastje、Fastum、Fastio、faster、Fastow