Global ecological efforts can easily be at odds with local ecologies.全球性生态保护工作很可能会和地方生态系统存在矛盾。The company has made heroic efforts at cost reduction.公司在降低成本方面付出了艰苦卓绝的努力。Elaborate efforts were made to reconstruct what had ...
Scientists are trying to pull together disparate ideas in astronomy.科学家们正试图将天文学中的各派观点整合在一起。Speaking generally, the space enterprise has served astronomy well.总的说来，航空企业很好地促进了天文学的发展。We are on the threshold of a new era in ...