1.When answering this question, you can discuss the cognitive and developmental aspects of language learning in children. Many experts believe that the earlier children start learning a foreign language, the better, as young children have a greater capacity for absorbing new sounds and structures. 2.You can also consider the practical aspects, such as the availability of resources and the child's interest and motivation. Some might argue that starting in early childhood, around ages 3 to 5, is ideal, while others might suggest waiting until primary school when children have developed basic literacy skills in their native language.

1. 在回答這個問題時，你可以討論兒童語言學習的認知和發展層面。許多專家認為，孩子越早開始學習外語越好，因為幼兒有更強的能力吸收新的聲音和結構。 2. 你也可以考慮實際層面，例如資源的可獲得性以及孩子的興趣和動機。有些人可能認為，從幼兒期開始學習，大約在3到5歲之間，是理想的；而另一些人則可能建議等到小學階段，當孩子已經掌握母語的基本讀寫能力後再開始。