Pretersonics
[電] 高于500百萬赫頻率的聲納波
??? 情景例句
Hi! What happened?
嗨 ！怎么回事？
My boyfriend is against me going too.
我的男朋友也反對我去。
After we had landed, the plane was searched thoroughly.
我們降落之后，飛機(jī)被徹底搜查了一遍。