เด็กๆกำลังแข่งขันคลานเร็ว ในงาน BBB...Baby & Kids Best Buy ครั้งที่ 31 ณ อิมแพ็ค เมือนทองธานี ชาเลนเจอร์ ฮอลล์Babies crawl as their parents cheer during a contest held at Thailand Baby and Kids Bestbuy fair at IMPACT Arena, Exhibition and Convention Center in Muang Thong Thani, in Pak Kret district of Nonthaburi, which runs until Sunday.Published caption : Parents help their babies crawl during a recent contest. The NESDB noted the difficulty certain Asian countries have had in trying to increase their fertility rates.