Ofa
光纤放大器（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，履险如夷。
But your team is even stronger. I knew you would beat them because you had played so well in the league.
可是你们的队更强。我知道你们会打败他们的，因为你们在联赛中战绩很好。