fast

1. ADJ Fast means happening, moving, or doing something at great speed. You also use fast in questions or statements about speed. 迅速的

...fast cars with flashing lights and sirens. …閃燈、鳴笛、快速行駛的汽車。

The only question is how fast the process will be. 惟一的問題是這個(gè)過程會(huì)有多快。

2. ADV Fast is also an adverb. 迅速地[ADV with v]

They work terrifically fast. 他們工作極快。

It would be nice to go faster and break the world record. 再快一些，打破世界紀(jì)錄就好了。

How fast would the disease develop?

這種疾病發(fā)展有多快？

3. ADJ If a watch or clock is fast, it is showing a time that is later than the real time. (鍾表) 快於準(zhǔn)確時(shí)間的[v-link ADJ]

That clock's an hour fast. 那個(gè)鍾快了一個(gè)小時(shí)。

4. 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

The fabric was ironed to make the colours fast. 這佈被熨燙過以使其不褪色。

5. ADV You use fast to say that something happens without any delay. 毫不耽擱地[ADV after v]

When you've got a crisis like this you need professional help – fast!. 在遇到這樣的危機(jī)時(shí)，你需要專業(yè)的救助–絲毫不能耽擱！

6. ADJ Fast is also an adjective. 毫不耽擱的[ADJ n]

That would be an astonishingly fast action on the part of the Congress. 那將是國會(huì)方麪一次快得驚人的行動(dòng)。

7. ADV If you hold something fast, you hold it tightly and firmly. If something is stuck fast, it is stuck very firmly and cannot move. 緊緊地[ADV after v]

She climbed the staircase cautiously, holding fast to the rail. 她緊握扶手，小心翼翼地爬上樓梯。

8. ADV 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. 堅(jiān)定地[ADV after v]

We can only try to hold fast to the age-old values of honesty, decency and concern for others. 我們衹能努力堅(jiān)守那些古老的價(jià)值觀：誠實(shí)、正派、關(guān)心他人。

9. 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、毉療或抗議等原因) 禁食

I fasted for a day and a half and asked God to help me. 我禁食了一天半，請求上帝幫助我。

10. N-COUNT Fast is also a noun. 禁食

The fast is broken at sunset, traditionally with dates and water. 日落時(shí)開齋，按傳統(tǒng)會(huì)喫海棗、喝水。

11. fastingN-UNCOUNT 禁食

...the Muslim holy month of fasting and prayer. …穆斯林齋戒和祈禱的聖月。

12. PHRASE Someone who is fast asleep is completely asleep. 熟睡

When he went upstairs five minutes later, she was fast asleep. 他5分鍾後上樓時(shí)，她已熟睡。