禁毒专家说它可能会结束强效可卡因吸食泛滥的局面。Drug experts say it could spell the end of the crack epidemic.泛滥的河水正在迅速退落.The flooded river was subsiding rapidly.村民们作了可能发生洪水泛滥的防备.The villagers braced themselves for a possible flood....
Rebel sources have so far reacted cautiously to the threat.到目前为止，反叛分子面对威胁的反应非常谨慎。She climbed the staircase cautiously, holding fast to the rail.她紧紧地抓着栏杆，小心翼翼地爬楼梯。David moved cautiously forward and looked over the edge.戴维...