Stepless (variable)drive
[化] 无级变速传动装置
🧩 词语组成解析
[机] 无段式, 无段的
🗣️ 情景例句
Hi, Michelle. It's Daddy.
嗨 Michelle 是爸爸。
While you were writing letters,I was reading a book.
当你正在写信时，我正在读一本书。
It's black. It's a black car.
是黑色的，一辆黑色的车。