Ofa
光纤放大器（optical fiber amplifier）
🗣️ 情景例句
They quarreled with each other but soon made up.
他们吵了一架，但很快就言归于好。
How long will it take you to make it?
你要多久才能做好它？
We black people of Birmingham want equal rights.
我们伯明翰的黑人要求享有平等权利。