Ofas
(ofa 的复数) 光纤放大器（optical fiber amplifier）
🗣️ 情景例句
I'd like to introduce myself; my name is Mr. Cobain, and I'm vice president.
我来介绍我自己，我是科本先生，是这儿的副总裁。
The little boy left home for his first day at school.
那个小孩第一天离开家去上学。
He did a lot of research and travelled around the USA looking for information about his ancestors.
他做了大量的研究，在美国跑了许多地方，了解有关祖先的情况。