...to sleep,return,reach 的延续性动词或状态 速度答:延续性动词与非延续性动词之间的转换:leave --- be away, borrow --- keep, buy --- have, begin/start --- be on, die --- be dead, finish --- be over, join --- be in+组织机构, be a member of+组织机构, open sth --- keep sth open, fall ill --- ...