Empty binary tree
[计] 空二叉树
🧩 词语组成解析
empty
[ˈɛmptɪ]
adj. 空的，空虚的，空洞的;空闲的，无效的，徒劳的;无聊的，愚蠢的;言语或行动空洞的;
vt. （使）成为空的， 把…弄空;把…腾出来;
vi. 成为空的;流空;
n. 空车;空的东西;
binary
['bainəri]
adj. 双重的，由两个东西组成的;二态的;二元的;二进制的;
n. 一双;双体;二进制数;双子星;
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
We were all sorry when we heard that your brother had had an accident.
我对你弟弟的意外感到遗憾。
The result depends on how the facts are interpreted.
其结果要视对事实的解释而定。
He was late again. It's typical of him to keep everybody waiting.
他又迟到了。他的特点就是让别人等他。