Footswitch
脚踏开关
🗣️ 情景例句
Don't forget Susan.
别忘了Susan。
He wants to work for a while before he returns to college.
他希望返回学校之前暂时工作一段。
when H.M.S. Porcupine was put at the disposal of the Royal Society for several cruises,
皇家学会用英国"豪猪号舰艇进行了几次巡航后，