Ofa
光纤放大器（optical fiber amplifier）
🗣️ 情景例句
We don't get to see enough of each other.
我们在一起的时间太少了。
Experience is the best teacher.
经验是良师。
During these tests she was able to read a newspaper through an opaque screen and,
在这些测试中，她能隔着不透明的屏幕读报纸。