What does speed mean? What part of speech?

noun

1. Speed, speed

The train is running at a speed of 60 miles per hour.

The train is running at a speed of 60 miles per hour.

Step 2: Quick, quick

You work at an amazing speed.

You work very fast.

3. Sensitivity (of movies, etc.). ); Exposure rate [C][U]

4. Gear shifting device (of an automobile, etc.). ), gear [C]

The young man just bought a 10 speed bike.

The young man just bought a ten-speed bike.

5. methamphetamine (a stimulant), slang for amphetamine [U]

6. Ancient luck, success; Prosperity [U]

The intransitive verb vi.

1. Let's go, let's go [Q]

The ambulance sped to the hospital.

The ambulance sped to the hospital.

(usually used in the continuous tense) going too fast, speeding.

Tom was fined for speeding.

Tom was fined for speeding.

Step 3 accelerate

4. Living in ancient times; Xinglong; success

transitive verb

1. Fast transmission speed; launch

Now space satellites are used to speed up long-distance calls.

Satellites are now used to transmit long-distance calls quickly.

2. Send it to [O]

3. promotion; speed up ...

Fresh air and nutritious food will accelerate his recovery.

Breathing fresh air and eating nutritious food will promote his recovery.

Adjust the speed of (a machine, etc.). ); Run at a constant speed

5. I hope ... have a safe trip; I hope ... early success.

6. The ancient ambassador succeeded; prosper

-Speed

Compound comb

1. (constitutes an adjective) means "and" ... speed "(for example, a bicycle with a speed of 10 has a bicycle with a speed of 10).