(Military)(of a rifle) held with the barrel on the left shoulder and the butt in the left hand
(军)（左肩）扛枪
(Military)hold a rifle at the slope
(军)扛枪
(informal)leave unobtrusively, typically in order to evade work or duty
(非正式)悄悄溜走（尤指逃避工作或值班）
the men sloped off looking ashamed of themselves.
那些人悄悄溜走了，满脸羞愧的样子。