for the first time 第一次;首次(作状语)
all around the world 世界各地
have a good knowledge of...通晓,熟知......
on (over) the phone 在电话里;在打(接)电话
communicate with sb.by sth.通过某物与(某人)联络
the answer to the question 问题的答案
borrow...from.... 从......借(入)......
have sorne difficulty in doing sth. 干某事有困难
the past five decades 过去的五十年
be satisfied with 对......满足
insist on doing 坚持做......
be certain/sure to do 确信会做某事
persuade sb to do sth 说服某人干某事-结果成功
advise sb to do sth 劝说某人干某事-结果失败