The rate at which work is done, expressed as the amount of work per unit time and commonly measured in units such as the watt and horsepower.是什么意思_The rate at which work is done, expressed as the amount of work per unit time and commonly measured in units such as the watt and horsepower.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句