Bnf
[计] 巴科斯范式; 巴科斯-诺尔范式
🗣️ 情景例句
Who is it?
谁呀
To strive, to seek, to find, and not to yield.
要奋斗，要探索，要有所发现，而不要屈服。
Oh dear! It's very cold today, isn't it?
天哪，天真冷，不是吗？