Acceleration is the rate at which a car or other vehicle can increase its speed, often seen in terms of the time that it takes to reach a particular speed.
双语例句
例： Acceleration to 60 mph takes a mere 5.7 seconds.
加速到每小时60英里仅用5.7秒。
例： The flexible engine provides smooth acceleration at low speeds.
多种燃料发动机允许低速平稳加速。