severe
严重的(程度重,含压迫感,负面倾向)
serious
严重的(强调重要性和紧迫性,较中性)
The floods caused severe damage to the infrastructure, leaving thousands of households without clean water or electricity.
洪灾对基础设施造成了严重的破坏,使数千户家庭断水断电。
The outbreak raised serious concerns about the government's preparedness for future public health emergencies.
此次疫情引发了外界对政府应对未来公共卫生紧急事件准备程度的严重担忧。