Subproblem tree
[計] 子問題樹
?? 詞語組成解析
[計] 子問題
tree
[tri]
n. 樹;木料;樹狀圖;宗譜;
vt. 把…趕上樹;使處于困境;把鞋型插入（鞋內）;
??? 情景例句
Give him a call.
打個電話給他。
Revolutions are not made with rosewater.
革命不是玫瑰香水做成的（指：革命不能采用溫和的辦法）。
While they enjoy the comfort and banal luxury of their dwelling,
在享受自己住宅的舒適和庸俗的豪華時，