Ultraphonics
超声学
🗣️ 情景例句
What pretty flowers! Thank you.
好漂亮的花!谢谢你。
I'm pleased to hear about your wife having a baby.
我很荣幸得知你太太生了一个小宝宝。
I don't know whether you care to answer right away.
我不知道你是否愿意立即回答。