旧物质的价值，比如阿司匹林，过去一向是收费的。
The value of old ones, like aspirin, is never paid retrospectively.
一些人反对使用止痛药，特别是强效的，比如阿司匹林和布洛芬。因为喝多了以后再吃这些药会反胃。
And some advise against using painkillers, particularly the stronger ones like aspirin and ibuprofen, as they can cause stomach upsets after a heavy night out.
你在服用抗凝药物（比如华法林，肝素）或者抗血小板聚集药物（阿司匹林或氯吡格雷）——一般情况下，在结肠镜检前应明停止服用这些药物，以防出血不止。
Are taking any blood-thinning drugs (such as warfarin or heparin) or antiplatelet medication (such as aspirin or clopidogrel)
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