左: the left side; the left递归: recurrence; recursion一般左递归: general left recurrence直接左递归: direct left recursion; immediate left-recursion自左递归: self-left recursion左递归定义: left recursive definition左递归方式: left recursive way左递归规则: left recursive rule左递归派生: left recursive derivation左递归文法: left recursive grammar左递归形式: left recursive form; leftrecursiveform直接左递归的: directly left recursive; directly-left recursive左递归产生式: left recursion production; left recursive production直接左递归规则: direct left recursive rule左递归非终结符: left recursive nonterminal递归: [数学] recurrence; recursion递归 递回: recursion递归表: recursive list递归得: recursive call递归的: recursive递归地: recursively递归法: recurrence method; recursive method递归集: recursive set递归解: recursive solution递归类: recurrent class