Bispectrum
双频谱
🗣️ 情景例句
He and my Grandpa both went there.
他和我爷爷都曾在那儿读书。
Please call before you come,otherwise we might not be home.
请在你来前打一下电话来,否则我们可能不在家。
Though he kept throwing up his arms in despair, he readily accepted the $5 I have him.
虽然他绝望地举起双手，但他毫不迟疑地收下了我付给他的5镑钱。