我不擅长它英文

be good at doing sth.I'm not good at doing it .be expert/skilled in sth.I'm not expert / skilled in it. do 和 be动词不可能同时作为动词出现在一句句子中 ‘ I'm not do well in it !'有待思考

be not good at sth

English is my favorite subject, but I'm not good at it.be good at=do well in:擅长于

don't shine at tennis.我不擅长打网球。I am no good at it.我对它不擅长。My sister is no good at arithmetic.我妹妹不擅长算术。Lack of talent or ability.不擅长，笨拙缺乏天资或能力I've never learnt the trick of making friends easily.我一向不擅长轻易交上朋友。I wouldn't say I was proficient at computer programing.我看我并不擅长计算机编程。I'm not very good at hacking but I'll give it my best.我不擅长安装但是我会尽力。He's not very good at description.他不大擅长描写叙述.He is not a good hand of write.他不是一个擅长书法的人。Not in my line.这不是我所擅长期的

be not good at doing sth