Stepped pulley
[機] 塔輪
?? 詞語組成解析
v. 踏；行走（step的過去式和過去分詞）
pulley
['p?li]
n. 滑輪（組），滑車;皮帶輪;
v. 用滑輪升起，用滑車推動;給…裝滑車;
??? 情景例句
It's good! It's this Sunday at 7.
好極了。宴會再本周日7點。
Never think yourself above business.
勿自視過高；不要眼高手低；永遠不要認為自己是大才小用。
This is just what I wanted.
這正是我想要的。