之前至少已经有过13次想独立到达北极的尝试。There have been at least thirteen previous attempts to reach the North Pole unaided.一想到探险者，我们很多人脑海中浮现的便是长途跋涉前往北极的非凡人物形象。When we think of adventurers, many of us conjure up images of larger-than-life...
Carbon is needed as a reducing agent in many metallurgical operation.许多金属冶炼操作中需要碳作为还原剂.They point out inadequacies in applying criteria developed from metallurgical practice to reinforced plastics.他们指出了把冶金工业采用的断裂标准应用于增强塑...
In some plants, lycolipids constitute the major polar lipids in ceil membranes.在有些植物中糖脂是细胞膜中主要的极性油脂.Twelve months constitute a year.12个月为一年。One - half of the members of the Executive Committee shall constitute a quorum.(...
Most have meekly accepted such advice.大多数人都已经顺从地接受了这样的建议。"Thank you, Peter", Amy said meekly.“谢谢你，彼得，”埃米温顺地说。He meekly accepted the rebuke.他顺从地接受了批评....
The restaurant is operated by the Palo Alto Auxiliary for the benefit of the Lucile Salter Packard Children's Hospital.这家餐厅由帕洛阿尔托附院经营，收益用来资助露西尔·帕卡德儿童医院。I asked Dave Packard if it was feasible to proceed in this mann...
The payload of a ballistic missile is its warhead.一枚弹道导弹的有效载荷是它的弹头.It can hit a target with an atomic warhead.它能以原子弹头袭击目标.The warhead is the missile's payload, or cargo.战斗部是导弹的有效载荷, 即运载物....