"a serious student of history"
"a serious attempt to learn to ski"
"gave me a serious look"
"a serious young man"
"are you serious or joking?"
"Don't be so serious!"
"marriage is a serious matter"
"a dangerous operation"
"a grave situation"
"a grave illness"
"grievous bodily harm"
"a serious wound"
"a serious turn of events"
"a severe case of pneumonia"
"a life-threatening disease"
"good music"
"a serious book"
"raised serious objections to the proposal"
"the plan has a serious flaw"
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句
来自柯林斯例句