问题补充：
Why can we say the American people is a people on the move 我要的是原因.不是翻译.
答案：
Because them like journey
======以下答案可供参考======
供参考答案1:
them???
yun dao（这一行是中文拼音，应楼主要求，由于本人不太会英文，所以只能用拼音）
供参考答案2:
Because the American people like to move from here to there,the are the people who most enjoy moving.
供参考答案3:
davids answer is better
