Ofa
光纖放大器（optical fiber amplifier）
??? 情景例句
Hi.
嗨！
Who has no haste in his business mountains to him seem valleys.
做事不急，履險如夷。
But your team is even stronger. I knew you would beat them because you had played so well in the league.
可是你們的隊更強。我知道你們會打敗他們的，因為你們在聯賽中戰績很好。