n.節(jié)點(diǎn);關(guān)節(jié)
名詞node的復(fù)數(shù)形式.
A path is a sequence of distinct nodes. 通路是不同節(jié)點(diǎn)的序列。
If some nodes are empty, they are being deleted. 如果某些節(jié)點(diǎn)是空的,他們可以被刪除。
波腹