Symmetric binary tree
[计] 对称二叉树
🧩 词语组成解析
symmetric
[si'metrik]
adj. 相称性的，均衡的;
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
God helps those who help themselves.
天助自助者。
Did you enjoy your flight?
你的飞行旅途愉快吗？
Whatever the source of noise, one thing is certain: silence, it seems, has become a golden memory.
看来寂静已变成一种珍贵的回忆。