Quadricorrelator
自動調相線路, 平方律相關器
??? 情景例句
Oh yes.
你好。
Experience must be bought.
若要得經驗，必須化代價。
It is no use inviting the politician or the professional or business man,
同樣也是無益的，對于政界人士、專業技術人員、商人來說，