Dcna
[计] 数据通信网络体系
🗣️ 情景例句
that I wasn't sure.
我说我不能确定。
We learn not at school, but in life.
学习不在校，而在生活中。
Yes, so we had better look over your specifications.
是的，所以我们最好先把您的规格说明细看一遍。