Bispectrum
双频谱
🗣️ 情景例句
I started traveling twenty-four hours ago.
从出门到现在已经二十四小时了。
He always plays the pinball machine.
他通常玩游戏机。
especially when it was Hart who, in the end, overcame the attacking Indians.
特别是当哈特最后战胜了前来进攻的印第安人时，观众更能原谅他。