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
How do you feel today?
今天感觉如何？
I often brush my teeth in the morning.
我常常在早上刷牙。
Is Mr Brain in?
布雷恩先生在家吗？