But experts say parents and teaching (teachers) may begin to suspect the problem, if a child is good at speaking, reading, and writing was (but) slow to develop math skills.

• 但是，专家说如果一个孩子很擅长读写说，但是在数学方面的进展却很慢，家长和老师应该怀疑这个儿童是否患有该病。