Children can learn a language more than 1 language, without having to take any more (different from adults, many people belonging to the arch with second-language)
Children can learn more than one language, without the need for any additional time. (Unlike many, especially those who are antagonistic toward second language).
Children can learn the language more than 1 language without the need to spend the extra but different from the adults, many people เป็นไม้เบื่อไม้เมา with second language).