内行: expert; adept; specialist; proficient; expert in; professionals; one who knows how; people who know the ropes; turn oneself into experts; an old hand at sth.: 充内行 pose as an expert; 向内行人学习
请教: ask for advice; consult 短语和例子请教内行 consult an expert; 向老数学家请教几个数学问题 consult an old mathematician on a few maths problems; 向老师傅请教 learn from the master worker; ask for the master worker's ad
