speed

• 名词，指物体运动、工作或事情发生的快慢程度，常以单位时间内通过的距离来衡量。也可指迅速、快捷的性质，或指某种速度档位、速率。

A noun referring to the rate at which something moves, operates, or happens, often measured as distance per unit of time.

1. Rate of motionA2formal

   The rate at which something moves or operates, measured in distance per unit of time.

   速度

   • The car was traveling at a high speed.
   • He increased his speed to catch the bus.
   • The speed of the train is 200 kilometers per hour.

   同义词celeritypacequicknessrapidityrateswiftnesstempovelocity

2. Rate of activityB1formal

   The rate at which something happens or is done.

   速度

   • The speed of the internet connection is very slow.
   • She works at an incredible speed.
   • The speed of technological change is accelerating.

   同义词celeritypacequicknessrapidityrateswiftnesstempo

   反义词slownesssluggishness

3. Illegal drug (slang)C1slang

   A slang term for amphetamine or other stimulant drugs.

   快速丸（俚语）

   • He was arrested for possession of speed.
   • Speed can cause serious health problems.
   • The dealer was selling speed on the street corner.

   同义词billycrankcrystalicemethwhiz

• 表示高速移动或快速进行的动作，也指使某物加速。

A verb used to indicate the act of moving or operating at a high rate of speed, or to cause something to move or happen faster.

不规则动词

1. Move quicklyA2formal

   To go or travel at a high speed.

   疾驰

   • The car sped down the highway.
   • She sped through her homework to finish on time.
   • The train sped past the station without stopping.

   同义词boltdashflygallophurryracerushsprinttearwhizzoom

   反义词crawldawdlelagloiterplodslowtrudge

2. Exceed speed limitB1formal

   To drive faster than the legal speed limit.

   超速

   • He was fined for speeding on the motorway.
   • The police officer caught her speeding in a school zone.
   • Speeding is dangerous and can cause accidents.

3. Hasten or accelerateB2formal

   To cause something to happen more quickly.

   加速

   • The new technology sped up the production process.
   • Good communication speeds the resolution of conflicts.
   • They sped the delivery of the package to meet the deadline.

   同义词accelerateexpeditehastenhurryprecipitatequickenrushurge

   反义词deceleratedelayretardslow

短语动词变体speed up