问答题
少壮不努力，老大徒伤悲。
Man was, is and always will be trying to improve his li...
问答题Man was, is and always will be trying to improve his living conditions.
It"s no good learning English without practice.
问答题It"s no good learning English without practice.
It is quite typical of him to be late.
问答题It is quite typical of him to be late.
