Optional gear ratio
[化] 可变齿轮速比
🧩 词语组成解析
gear
[ɡɪr]
n. 齿轮;排挡;传动装置;衣服 ;
vi. 接上;调和;
vt. 使适应;装上齿轮;用齿轮连接;
ratio
['reiʃiəu]
n. 比，比率;比例;系数;
vt. 求出比值，除，使…成比例;将（相片）按比例放大[缩小];
🗣️ 情景例句
I'll be married to Susan.
我就要和Susan结婚了。
The passengers were scared to death as the taxi whizzed along.
出租车风驰电掣般地驶着，乘客吓得要命。
As it was extremely heavy, he dumped it on the counter.
布袋很沉，他重重地把布袋扔在柜台上。