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I was riding the subway and happened to be seated between two young guys. 我当时正在坐地铁，我两边各坐了一个年轻的男孩。 The one on the right eyed the slightly grungy Band‑Aid on my thumb and said, “You should really change that, you know. You have to keep it clean.” 坐在右边的男孩看了下我大拇指上已经有点脏的创可贴，然后说：“你知道吗？你真的该把它换一换了。你得让那里保持干净。” | 
