Stepped pulley
[机] 塔轮
🧩 词语组成解析
v. 踏；行走（step的过去式和过去分词）
pulley
['pʊli]
n. 滑轮（组），滑车;皮带轮;
v. 用滑轮升起，用滑车推动;给…装滑车;
🗣️ 情景例句
Keep it down!
小点儿声！
Nothing is difficult to the man who will try.
世上无难事，只要人肯试。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。