Production tree
[计] 产生式树
🧩 词语组成解析
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
🗣️ 情景例句
Susan, would you like the crab salad?
Susan，要不要蟹肉沙拉？
Oh, just over the holidays.
哦，就过完假期。
Good morning, Mrs Brown. Well, what's your trouble, young man?
布朗太太早上好。嗯，小伙子有什么病？