hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:雙|双[shuang1],隻|只[zhi1]
Robinson Crusoe (r) got a new double-edged sword (刃) and is practising with it in the encampment's bathroom ((e)n4). He starts with cutting his old cleaver (刀), but soon takes the challenge to cut a flying petal leaf (丶) in half.