Ofa
光纤放大器（optical fiber amplifier）
🗣️ 情景例句
Well, that's just what I'm going to say.
这正是我需要说明的。
When were you born?
你什么时候出生的？
If you want to be thinner and healthier, you have to eat less food--and you also have to take more exercise.
“如果你想瘦些、健康些，你就得少吃一点--你还得多运动。”