Definition: something that is stuck in a machine or that prevents the parts of a machine from moving Level: C1
复印机有纸张堵塞。
The photocopier has a paper ___jam.
打印机突然卡住，停止了所有打印任务。
A sudden ___jam in the printer halted all printing jobs.
机械臂因齿轮卡住而故障。
The robotic arm malfunctioned because of a gear ___jam.
