因为头疼，我吃了一片阿司匹林。

For my headache, I took an ___aspirin.

医生建议我如果疼痛复发就服用一片阿司匹林。

The doctor advised me to take an ___aspirin if the pain returns.

这片阿司匹林应该有助于退烧。

This ___aspirin should help reduce your fever.