side-effect

例句：

1. 1. The drug has a known side-effect of causing nausea.
   这种药物已知会导致恶心。
2. 2. The new vaccine may have some side-effects that are not yet fully understood.
   新型疫苗可能有一些尚未完全理解的副作用。
3. 3. The research team is studying the potential side-effects of this new treatment.
   研究小组正在研究这种新治疗方法的潜在副作用。