名詞 pulley:

1. a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
   同義詞：pulley-block, block

1. Our flag is raised to the top of a pole by a rope and two pulley.
   我們的旗幟被用一根繩子和兩個(gè)滑輪升到了竿頂。
2. A simple device, such as a lever, a pulley, or an inclined plane, that alters the magnitude or direction, or both, of an applied force; a simple machine.
   機(jī)械裝置一個(gè)簡(jiǎn)單裝置，如杠桿、滑輪或斜面刨，可以改變作用力的大小或方向或同時(shí)改變; 簡(jiǎn)單機(jī)械裝置
3. A rope passed through an overhead pulley, as at the top of a mast, that is used for hoisting.
   吊繩用于提升事物的穿過高架滑輪的繩索，如在桿的頂端
4. The pulley of the clothes line jumped the track and Mother's washing fell down.
   晾衣服繩子的滑輪脫繩了，媽媽洗的衣服掉了下來(lái)。

pul.ley

n.（名詞）
【復(fù)數(shù)】 pul.leys
A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull and thereby lift a load.
滑輪裝置：一種有一個(gè)拉繩或鏈子穿過的有槽的輪子且通過改變拉力的方向而拉起重物的簡(jiǎn)單機(jī)械
A wheel turned by or driving a belt.
滑輪：通過拉一根帶子轉(zhuǎn)動(dòng)或牽拉一根帶子的輪子

來(lái)源：
Middle English poley
中古英語(yǔ) poley
from Old French polie
源自 古法語(yǔ) polie
and from Medieval Latin poliva
并源自 中世紀(jì)拉丁語(yǔ) poliva
both ultimately from Greek polos [axis] * see k wel-
都最終源自 希臘語(yǔ) polos [軸] *參見 k wel-