为什么 take an aspirin ,也可以是have some aspirin aspirin 算可数还是不可数?

为什么 take an aspirin ,也可以是have some aspirin aspirin 算可数还是不可数? aspirin可数还是不可数 为什么还有Take an aspirin? She must take an aspirin. she must have an aspirin I usually have aspirin改错 I usuallt have aspirin改错 please---an aspirin 填take took totake takes那一个 I usually have some aspirin.句中为什么必须用some? she must take an aspirin.句中的吃为什么不用eat 改句:I usually have aspirin. 来个会英语的he must take an aspirin .句子中的take是什么意思, Effects of aspirin是什么