留学国外怎么说

“出国留学”的英文表达是 study abroad。这个短语直接对应了中文的“留学”，意味着到母国以外的国家去接受教育，可能是短期或长期的学习过程。例如：

1. I will study abroad whether my parents agree or not.

2. I'm planning to study abroad next year.

3. Studying abroad can be a great way to broaden one's horizons.