" i do think we ' ll achieve it within 10 years , but the challenges in delivering it will be quite hard , " said gummer 本文来自news . jewelove . net “我相信我们能在十年内做到，但是制造这种东西所面临的挑战是艰巨的。 ”
2.
" it could be like using toothpaste to prevent tooth decay , " said gummer , a senior research fellow at procter and gamble labs in london , u . k . “这就像用牙膏来防止蛀牙一样, ”宝洁公司英国伦敦实验室的高级研究员网默说。
