Bispectrum
双频谱
🗣️ 情景例句
Excuse me, but I know you from somewhere.
打扰一下，我好像在什么地方见过你。
Old birds are not caught with new nests.
新巢捉不到老鸟。
It was difficult not to be tempted.
要想不为这些东西所动心是很困难的。