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
I'm so glad you found the bag and took the time and trouble to return it.
我很高兴你发现了旅行袋而且不怕麻烦花时间将它送来。
He feels awkward.
他感到困惑。
He has been there for six months.
他在那儿已经住了6个月了。