Pretersonics
[电] 高于500百万赫频率的声纳波
🗣️ 情景例句
Right. We don't have any cinnamon.
对。我们没有肉桂了。
Where is the telephone office?
电话局在什么地方？
it naturally limits all those engaged in carrying it out from effective contact
那些从事科研的人员自然受到了限制。他们不能进行有效的接触