Retrieval tree
[计] 检索树
🧩 词语组成解析
retrieval
[ri'tri:vəl]
n. 收回，挽回;检索;
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
Marketing promotion.
市场推广。
Money is the root of evil.
金钱是罪恶的根源。
The twins took the basket from the boat and put it under the tree.
双胞姐妹把篮子从船上拿起，放在树下。