Ofas
(ofa 的复数) 光纤放大器（optical fiber amplifier）
🗣️ 情景例句
The instructions were not easily understandable.
这份说明书不容易理解。
To play a trick
戏弄
With all these mouths to feed, he didn't know what to do.
由于有那么多人要供养，他不知道怎么办才好。