I think p_____ is one of the biggest problems in the world.

I think p_____ is one of the biggest problems in the world. 英语翻译Flooding is one of the biggest problems on the world .In 英语翻译 Flooding is one of the biggest problems on the world .I i think one of the biggest problems for me is language 中prob One of the biggest problems in food. beijing is one of the biggest cities in the world 同beijing i Beijing is one of the biggest cities in world canada is one of biggest countries in the world. ____(hungry) is one of the world's biggest problems.怎么填? 英语听力,One of the biggest problems people have is honesty Blame is one of the biggest problems that we meet in everyda One of the biggest sporting enents in the world is the Olymp