adj.回溯；回溯法
動(dòng)詞backtrack的現(xiàn)在分詞形式.
Backtracking and semantic actions do not mix well. 回溯和語義動(dòng)作混用不是太好。
The backtracking mechanism is an important facility for programming in logic. 回溯機(jī)制是邏輯程序設(shè)計(jì)的重要設(shè)施。
