求翻译：“知玄、素之术者，则曰唯房中之术可以度世；明吐纳之道者，则曰唯引气可以延年；知屈伸之诀，则曰唯导引可以养老；知草木之方者，则曰唯药饵可以无穷。是什么意思？

To know the mysterious factors, the surgeon, the art room Zeyue CD World; out breathing Road, Zeyue the CD air-entraining can prolong; know the tactics of the flexion and extension, Zeyue the only guide can pension; know The vegetation of the party, Zeyue the only bait can be infinite.

正在翻译，请等待...

“Knows, technique of unreliably the element, then says only in the room the technique to be possible the world; Road of Ming Tuna the, then said only the luck may prolong the life; The knowledge expands and contracts the knack, then said only guides may care for the aged; Knows side of the vegetatio

正在翻译，请等待...

正在翻译，请等待...