“By 6 months of age,” says Science magazine, “babies learn to categorize vowel sounds, paying attention to distinctions that are meaningful in their native language, such as the difference between ‘ee’ and ‘ah,’ while ignoring meaningless variations.”
ตั้งค่าการชดเชยแสงหลักได้ที่นี่ โดยมีหน่วยเป็น E. Vjw2019 jw2019