请教!为什么所有的单词都认识,却不知道意思!

知识问答

如下面这篇报道:文章源自玩技e族-https://www.playezu.com/178930.html

　　Clinton's mother, daughter hit trail文章源自玩技e族-https://www.playezu.com/178930.html

　　WINTERSET, Iowa - Hillary Rodham Clinton was joined by her mother and daughter Saturday as she vowed "change across the generations" and stepped up her pitch to the women voters who could hold the key to Iowa's caucuses.文章源自玩技e族-https://www.playezu.com/178930.html

　　"We're getting close to the caucuses," said Clinton. "I always think it's better to go to the caucuses with a buddy. Today, I've got some buddies with me."文章源自玩技e族-https://www.playezu.com/178930.html

　　Those "buddies" included 88-year-old mother Dorothy Rodham and 27-year-old daughter Chelsea Clinton, making her first appearance with her mother on the trail in the race for the Democratic presidential nomination.文章源自玩技e族-https://www.playezu.com/178930.html

　　Opening the swing, Clinton noted that her family is able to care for her mother as she ages......文章源自玩技e族-https://www.playezu.com/178930.html

　　(全文地址 )文章源自玩技e族-https://www.playezu.com/178930.html

　　hit trail ,stepped up her pitch ,Opening the swing,文章源自玩技e族-https://www.playezu.com/178930.html

　　请教高手,这些都是什么意思?为什么所有的单词都认识,却不知道意思!这方面的东西该如何学习?文章源自玩技e族-https://www.playezu.com/178930.html 文章源自玩技e族-https://www.playezu.com/178930.html