Otds
abbr. optical time division switching 光时分交换
🗣️ 情景例句
Good work.
做得好。
A spot is most seen on the finest cloth.
最清洁的布上，污点特别显眼。
yet we might grudge paying a surgeon a high fee for offering us precisely this service.
但就在外科大夫给我们提供了这种服务后，我们却可能为所支付的昂贵的费用而抱怨。