What subject are you good at?
你擅长哪门功课?
mathematics.
数学。
重点词汇
擅长be good at ; be expert in ; be skilled in。
功课schoolwork ; school lesson ; lessons ; task。
他无法掌握数学的基本概念。
He can't grasp the basic concepts of mathematics.
数学曾一度被视为各门科学的基础。
Mathematics was once dubbed the handmaiden of the sciences.
我的数学成绩总是班上最后一名。
I was always bottom of the class in math.
我的数学课为三个学分。
My math class is worth three credits.