Rheostats
n. [电] 变阻器；[电] 可变电阻（rheostat的复数形式）
🗣️ 情景例句
Harry, I'd love to,
Harry，我确实想去，
Between two stools one falls to the ground.
脚踏两头要落空。
It broke down at Ferngreen station and was taken off the line.'
它在芬格林车站出了故障而被取消了。”