Nfcs
abbr. night fire-control sight 夜间火力控制瞄准具
🗣️ 情景例句
What's the nature of the problem?
是什么样的问题？
A man without a smiling face must not open a shop.
人无笑脸，不要开店。
We realized that they must have become unduly frightened by the rising flood,
我们意识到他们一定是被不断上涨的洪水吓坏了。