lever

n. /ˈlev.ɚ/ B2

杠杆；操作杆；操纵手柄

A rigid bar pivoted to move a load; a handle to operate machinery.

仙境例句

When Alice pulled the iron lever, the great roof slowly opened to the stars.

爱丽丝一拉那根铁杆，大屋顶就慢慢向星空打开了。