Context-free grammar
[计] 上下文无关文法
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
🗣️ 情景例句
Have you ever been to Niagra Falls?
你去过尼亚拉加瀑布吗？
Don't try to brainwash me.
别想给我洗脑。
Don't ask me, sir. I only laid the table.
别问我，先生。我只是摆桌子。