1.With five days left until Election Day, President Barack Obama was on the stump for Democratic presidential nominee Hillary Clinton, urging voters to "choose hope".
on the stump登台演讲
And it is still rare for politicians to mention on the stump.
而且,政客们登台演说时很少提及这个问题。
2.Meanwhile, Donald Trump told supporters Clinton would be under investigation for many years for her use of a private email server.
under investigation受到调查
The club is under investigation by the fraud squad.
反诈骗调查组正在对该俱乐部进行调查。