You use granted at the beginning of a clause to say that something is true, before you make a comment on it.
Granted, he doesn't look too bad for his age, but I don't care for him.
的确,就他的年龄来说他看上去还算不错,但我不喜欢他。
You use granted or granted that at the beginning of a clause to say that something is true, before you make a comment on it.
Granted that the firm has not broken the law, is the law what it should be?
诚然,该公司没有违犯那条法律,但那条法律就是合理的吗?