Ncv
abbr. no commercial value 无商品价值，无工业价值
🗣️ 情景例句
Hi. Welcome.
嗨， 欢迎你 。
The comet will appear in the southern sky.
彗星出现在南方的天空。
You are walking too fast. I can't keep up with you.
你走得太快，我跟不上。