Fibreoptics
na. 纤维光学；用于纤维光学的纤维\\n
🗣️ 情景例句
Thank you.
谢谢。
It is easier to descend than to ascend.
下降容易上升难。
I'd prefer to do that tomorrow. I don't feel like walking very much today.
我宁可明天游览。今天我不太想步行。