Otds
abbr. optical time division switching 光时分交换
🗣️ 情景例句
What broke up their friendshop?
是什么破坏了他们的友情呢？
I'm not young enough.
我还不够年轻。
He wrote books about communism. He said that all communists should help each other.
他写了不少关于共产主义的著作。他说所有的共产党人都应该互相帮助。