背着手
[词典] with one's hands clasped behind one's back;
[例句]路上只我一个人，背着手踱着。这一片天地好像是我的；我也像超出了平常的自己，到了另一世界里。
Strolling alone down the path, hands behind my back, I felt as if the whole earth and sky were mine and I had stepped outside my usual self into another world.