Line 10大

"Line 10大" is a phrase that seems to be a mix of Chinese and English, but it's not a standard phrase in either language. If you're referring to "Line 10" as the subway line in Beijing, then "Line 10 大" could be interpreted as "Line 10 big" in English, but it's not a common way to describe the line.

If you're looking to discuss or ask about Line 10 of the Beijing Subway, a more standard way to refer to it would be simply "Beijing Subway Line 10" or "北京捷運10號線." If you have any specific questions or need information about Line 10, feel free to ask!