that a.那 pron.那 ad.那样

that is 就是说；即(略为i.e.)

that is to say 那就是说，换句话说

thatch n. 茅草屋顶，茅草

that's (同)that is

that's all right. 不必谢；没什么(表示"不用谢")

that's all. (讲话结束时用语)完了

that's great! 好极了!太好了!