Echogram
n. 超声波回声图, 回声深度记录
🗣️ 情景例句
I don't know haw that could have happened.
我不知道怎么会发生那样的事。
The young man had been well aware of her presence at the party.
那个年轻人早已注意到她在宴会上。
They sting or bite without provocation; they fly uninvited into our rooms on summer nights, or beat ageist our lighted windows.
它们无缘无故地又叮又咬；夏天的晚上，它们未经邀请便飞到我们房间里，或者对着露出亮光的窗户乱扑乱撞。