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
Well, I've thought a lot about which college,
嗯， 我为了上哪一所大学想了很多，
We're having some friends over. What are you doing?
我们打算请几位朋友来玩。你打算干什么呢？
It will be cloudy at times.
阴有多云。