Ofas
(ofa 的复数) 光纤放大器（optical fiber amplifier）
🗣️ 情景例句
a way to encourage reading.
鼓励阅读的办法。
I imagine it was part of a dinosaur.
我猜那是恐龙的一部分骨骼。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。