1. She explained the thinking(想法) behind the campaign.
2. Too much protein(蛋白质) in the diet may advance the ageing process.
3. He escaped by sawing through the bars of his cell(牢房).
4. So far they have not found a way to fight the virus(病毒).
5. One of the main findings(发现) of the survey is that this chemical does harm to people’s health.
6. My initial (最初的)reaction was to decline the offer.
7. Researchers around the world are working together to develop a new vaccine(疫苗).
8. The construction of this framework(框架) took only a few minutes.
9. He believes only theoretical(理论的) science can create miracles.
10. The snow had melted, but the lake was still frozen solid(坚实的).
