怎么把“我不擅长大篮球”翻译成英语？

I am not so good at basketball.

擅长有两个说法 be good at 和 do well in

所以 你可以说

I'm not good at basketball

或者

I do not do well in the basketball

擅长的意思是：be (not) good at doing sth./-n.
"篮球"可以翻译为:playing basketball(doing形式）/basketball(n.)
所以“我不擅长打篮球”翻译为：I'm not good at playing basketball

I'm not very good at basketball.

i'm not good at playing basketball

I am not good at playing basketball
I don`t do well in playing basketball