用“UDFy-38135539”造句大全，UDFy-38135539造句
What is clear is that UDFy-38135539 couldn't have ionized the gas on its own.
It raises the question what are these other sources and are they like UDFy-38135539 or not?
What is clear is that UDFy-38135539 couldn't have ionized the gas on its own.
It raises the question what are these other sources and are they like UDFy-38135539 or not?
