low speed的用法和樣例：
例句
- "A science fiction cannot not be regarded as a mere entertainment, but in fact it tells the reader much more."
"科幻小說(shuō)不能簡(jiǎn)單地看成是供消遣的，而實(shí)際上它給讀者展示更深刻的內容。" - You must use a low gear to drive up the hill.
開(kāi)車(chē)上山你要用低速檔。 - Please gears down the motor speed.
請換到低速檔。
