continuous表示连续不断的意思：There has been a continuous improvement in his work.他的工作持续改善.
continual:形容重复发生的事情,尤指令人厌烦的事：They have had continual problems with the heating.他们的暖气装置一再出现问题.
continued:持续,但中间过程中会有间断：There are reports of continued fighting near the border.报告显示边界附近不断有战斗.