生命起源的确切详情仍是个谜。The precise details of the origins of life remain hidden.地球上生命的起源the origins of life on earth她开始讲本市的起源.She embarked on a discourse about the town's origins....
然后通过大量实验筛选出两种有效添加剂环丁砜和六次甲基四胺.Following that, two effective additives - syclotersuphone and methenamine are found by series experiments.我们来讨论六亚甲基四胺.We examine the study of hexamethylenetetramine.以氨水、氯乙酸为原料,以六亚甲基四胺为相转移催化剂,...
时常翻动一下花圃和草坪四周会让被雨水压紧的土壤松动松动。Regular forking of beds and borders relieves the compaction caused by rain.把松动的地板块都粘好。Stick down any loose bits of flooring.用螺钉固定住所有松动的地板。Screw down any loose floorboards....
It was there before him, around him, everywhere , illimitable, immeasurable.它就在他的面前, 他的四周, 什么地方都是,一眼望不到头, 多得不可胜数.Darkness and Decay and the Red Death held illimitable dominion over all.黑暗之神、腐烂之神和红色死神以不可抗拒的力量统治一切.He had c...