If you have an apple and I have an apple and we exchange apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas. |
GMT+8, 2025-7-19 07:23 , Processed in 0.030192 second(s), 17 queries .
© 2001-2025 Discuz! Team. Powered by Discuz! X3.5.