Usn
abbr. 美国海军（United States Navy）
📖 牛津释义
USN
abbr
缩写 = United States Navy 美国海军.
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
The comet will appear in the southern sky.
彗星出现在南方的天空。
These young people, who love the peace of mountains, always receive a warm welcome at St.Bernard's monastery.
这些热爱高山清静环境的年轻人每年都受到圣伯纳德道院的热烈欢迎。