Bbn
宽频带噪声（broad band noise）
🗣️ 情景例句
I should thank you for encouraging me
我应该感谢你一直鼓励我
It is dogged (that) does it.
天下无难事，只怕有心人。
They put their hands behind their backs, so you can't see their hands.
他们将手放在背后，这样你就看不见他们的手了。