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智能体已就绪
NOUN · VERB

speed

/spiːd/
WORD
NO. 042
⚡
VISUAL MEMORY Move fast. Feel the speed.
01 · MEANING

The rate at which someone or something moves or happens.

速度；速率

02 · WORD LINKS
✦ AI INTRODUCTION 学习难度

Speed tells us how fast something moves. A racing car has high speed, while a walking turtle has low speed. We can also use “speed up” when something begins to move faster.

03 · USE IT
  1. Cars should not drive at high speed in the city.
  2. The runner increased her speed near the finish line.
04 · YOUR TURN

What is the fastest thing you know? Use “speed” in your answer.

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