yùn / qī / jiǎn / chá / yǒu / zhù / yú / jí / zǎo / fā / xiàn / tāi / ér / de / xiān / tiān / xìng / quē / xiàn孕期检查有助于及早发现胎儿的先天性缺陷。Prenatal examinations can help detect congenital defects in a fetus early.