Otds
abbr. optical time division switching 光时分交换
🗣️ 情景例句
All right.
行了。
What's good about it?
有什么好？
Can't we visit the High Dam? I've read a lot about it; it's the biggest in the world.
我们不能去参观高坝吗？我已读了很多关于高坝的情况；它是世界上最大的。