/ðət/
conj.1. (用于引导从句)We have reason to believe that the fighting on the border may develop into a full-blown war. (喻)我们有理由相信边境上的冲突可能发展成一场全面战争。
He said that he would come.他说他要来。
2. (在从句中相当于 who, whom 或 which)It's Jeans that makes the decisions here.这里作决定的是琼斯。
Did you see the letter that I sent him?你看到我寄给他的信了吗?
3. (用于引导从句,等于 in, on, for 或 at which)the day that he arrived他来的那天