As I sat blocked and clueless for two solid days, I momentarily wondered if I couldn't just call an expert on the subject matter which I was tackling, or someone who took the class previously, to get me going.

2017年12月四级真题（第一套）阅读 Section B

As a global society, therefore, tackling food waste will help contribute towards addressing a number of key resource issues.

出自-2013年12月阅读原文

In order to begin tackling the challenge, the Institution recommends that: The UN Food and Agriculture Organisation work with the international engineering community to ensure governments of developed nations put in place programmes that transfer engineering knowledge, design know-how, and suitable technology to newly developing countries

出自-2013年12月阅读原文

Where machines have made very little progress is in tackling novel situations.

2018年12月六级真题（第二套）听力 Section C