Vcna
VTAM通信网络应用程序
🗣️ 情景例句
That's nothing at all.
不用客气。
A duck will not always dabble in the same gutter.
一只鸭子不会常在同一条沟中玩水。
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？