Pemf
[医][=pulsating electromagnetic field]脉冲电磁场
🗣️ 情景例句
Daddy, can we go soon?
爸爸 ，我们能快点走吗？
Did you go to the hospital last night?
你昨晚去医院了吗？
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。