Signed tree
[计] 符号表示的树
🧩 词语组成解析
signed
[saind]
adj. 有符号的，有正负之分的;
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
Oh, no sir. We already gave you a discount on each item.
哦，不行，先生。每一件东西我们都给你打过折扣了。
Like cures like.
以毒攻毒。
She was not especially pretty. But she was extremely bright.
她不是特别漂亮，但她极聪明。