Otds
abbr. optical time division switching 光时分交换
🗣️ 情景例句
And perhaps, you'll join us?
也许你能跟我们一起去
Neglect of health is doctor's wealth.
忽视健康，医生财旺。
I will continue my learning, though I am tired of learning English.
尽管我很烦英语，我还是要学它。