OBAMA: all right. Here, I'm going to call on this gentleman right here. He's - he's been very persistent.

奥巴马：好，我想让这边的这位先生提问。他一直非常执着。

youdao

Throughout China's very long history there has been a persistent theme of continuity and change - the former very tenacious, but the latter sometimes very drastic.

在中国漫长的历史中，一个永恒的主题是持续和变化——前者的力量很顽固，但后者有时非常激烈。

youdao

They have been very persistent.

WHITEHOUSE: Press Briefing

But on the other hand, it would be unreasonable not to use this opportunity in order to -- not to discuss what we've been doing for the recent days or the recent time in a very coordinated and persistent manner.

WHITEHOUSE: President Obama Meets with Russian President Medvedev in Copenhagen | The White House