It is a strange fact, characteristic of the incomplete state of our present knowledge, that totally opposite conclusions are drawn about prehistoric conditions on Earth.
一个奇怪的事实是,关于地球史前条件得出了完全相反的结论,这反映了我们目前知识的不完整状态。
我唯一能依靠的就是我自己的不确定性。
今天我们播下的每一粒种子都蕴含着改变未来粮食体系的潜力。