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'll call in the morning and set up an appointment to see him.
我明天早上就打电话给他， 跟他约个时间去看他。
I will take a ship.
我将去搭船。
The situation seemed hopeless and he knew his life was in danger.
这种情况看来是毫无希望了，他知道他有生命危险。