The respiratory diseases were the main primary disease, accounting for 37.1%.

患儿原发病类型以呼吸系统疾病为主，占37.1%。

youdao

Williams' main primary opponents are three longtime council members forced to answer at every stop for the various crises the city suffered.

CNN: Can Tony Williams Save D.C.?

Ahead of the GOP primary, a Mason-Dixon poll showed the senator falling behind Akin and the two other main GOP primary competitors in hypothetical match ups among registered Missouri voters.

CNN: Akin bows out of CNN appearance at the last minute

But at that time the main concern was primary, not university, education.

ECONOMIST: Mexico