Variable-speed unit
[化] 无级变速器; 无级变速装置
🧩 词语组成解析
speed
[spid]
n. 速度;快速;昌盛;（汽车的）变速器，排挡;
vt.& vi. 急行，加速;
vi. 超速;加速;迅速前行;兴隆;
vt. 加快…的速度;使成功，使繁荣;
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Try this. It's size eight.
试试这一件。尺码是八号。
A thief knows a thief as a wolf knows a wolf.
贼了解贼，正如狼了解狼。
That's a big box. Is it heavy? Please let me help you.
这是个大盒子。重吗？让我来帮你。