Tiptoeing : feet apart and tiptoe ; to strengthen the calf muscles 登高望远:踮高脚尖，再放下强化小腿肌肉
2.
Only detaching can they be free from reality , they aren ' t interfered by present utility , the researchers ascend a height to enjoy a distant view , discusses those abstruse even metaphysics theoretic problems , expecting high quality research results with long effect 只有超脱才能从现实的利害中解脱，使研究不受眼下功利的干扰；只有超脱才能登高望远，探讨那些深奥的甚至是“形而上”的理论问题，以期产生高质量的、影响久远的研究成果。
