CS_SUB 有关tries 的题目

Elaine.WUID: 184092

谁能帮忙解释一下下面说法的原因：
1.“tries are of no particular advantage in storing sets of words with large numbers of common suffixes.”

2.“Constant time acess from node to child can be achieved by using one link per character of the alphabet at each node.”

AutoseaUID: 192045

1,trie对于存储有大量common prefix的单词可以节省空间，对于common suffix则没什么用

wanghh05UID: 2153614

第二句话说的是什么意思啊？