Spectrum signature
[电] 频谱特征
🧩 词语组成解析
🗣️ 情景例句
Have you ever been to a buffet dinner?
你去吃过自助餐吗？
One woe doth tread upon another's heels.
祸不单行。
He started to complain about this wicked world but was interrupted by a knock at the door.
他开始抱怨起这个邪恶的世道来，却被一阵敲门声打断了。