C1979 The Sieve will be Used in Aerospace

They've thought of thousands of answers, but they've never thought of this...

They had never thought that Qin Luo's answer would be one word: Wait...

Hehe.

Time was of the essence right now, they didn't have much time to waste here...

"Gulp." Bai Hang carefully swallowed his saliva and asked carefully, "Professor, we do not have much time left