Pulley
01
滑轮, 滑车
a wheel with a track where a rope or chain runs, used to lift heavy objects easily
例子
The workers used a pulley to hoist the heavy beam into place.
工人们使用了一个滑轮将沉重的横梁吊装到位。
He rigged up a simple pulley to raise the flag on the pole.
他安装了一个简单的滑轮来把旗子升到杆子上。
