that's ok和that is ok可以翻译为：没关系，可以，还好或者那好吧！ 如果人家对你说thank you，最好不要用that's ok和that is ok作为回答...
that is ok一般用于人家道歉后你的回答。 That's ok翻译为不用了，谢谢。如："That's OK. I don't need anything to drink."不用了，我不需......
