精选优质文档-倾情为你奉上Unit 1 Friendship知识点总结：1. add up 合计，把加起来 add up to 合计达到 add to 增加，增添 add A to B 把加进里面，把和相加 eg. Please add these figures up. These figures add up to 900. The bad weather added to our difficulities. Please add some salt to the water. If you add three to four, you get seven. Add three to four and you get seven. Three added to four is seven. add vt. 补充说 （后接that从句或者直接引语） Eg. He added that they would return in a week. “And dont be
