婴儿例行接受这种疾病的检测。

Babies were tested for the disease as ___a ___matter ___of ___course.

这场转变理所当然地导致了日常生活的巨大变化，包括饮食习惯。

The transformation has caused enormous changes in ordinary life as ___a ___matter ___of ___course, including eating habits.

安全检查在机场是例行公事。

Security checks are conducted as ___a ___matter ___of ___course at the airport.