Pemf
[醫][=pulsating electromagnetic field]脈沖電磁場
??? 情景例句
She hasn't been employed for six months now.
她已經失業半年了。
A blate cat makes a proud mouse.
貓兒靦腆，老鼠翻天。
I tried to wake up my wife by ringing the doorbell,
我按響了門鈴，試圖喚醒我的妻子，