As you know, making foreign pen pals can increase your language abilities and cross-cultural understanding.
As you know, making foreign pen pals can increase your language abilities and cross-cultural understanding.
交外国笔友可以提升语文能力，并增加双方跨文化的交流。
As you know, making foreign pen pals can increase your language abilities and cross-cultural understanding.
交外国笔友可以提升语文能力，并增加双方跨文化的交流。