pulley
n
1 (apparatus consisting of a) wheel or wheels with grooves for ropes or chains, used for lifting things 滑轮(组); 滑车.
2 wheel or drum fixed on a shaft and turned by a belt, used esp to increase speed or power 皮带轮.
Fierce wars between Native Americans and European settlers broke out.
美洲土著人和欧洲殖民者之间发生了激烈的战争。
She spelled out for me the things that the teachers taught.
教师所教的东西,她都为我拼写出来。
For his lifentime's work in studying the communication of animals, including honey bees, Professor Karl von Frisch was given a Nobel Prize in 1973, which he shared with two other scientists. He died in 1982.