extract expressions表达式: representation; expression表达式: representation; expression◇表达式求值 evaluation of expressionlambda表达式: lambda expressionlisp 表达式: lisp expressionsλ表达式: lambda expression下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:抽取表达式，即可在微信中查询翻译
