德语是他的母语英语怎么说

德语是他的母语英语怎么说：

1. German is his mother tongue.（德语是他的母语。）

2. He speaks German as his native language.（他以德语为母语。）

3. His first language is German.（他的第一语言是德语。）

4. He is a native German speaker.（他是德语的母语者。）

5. German is his first language and mother tongue.（德语是他的第一语言和母语。）