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
Have you made the reservations for...
你为。。。订了座吗？
What the eye sees not, the heart craves not.
目不瞬，心不乱。
Where do you come from?
你是哪国人？