footprints in the sand沙地足迹He squatted down beside the footprints and examined them closely.他蹲在脚印旁仔细地观察.I did a little sleuthing to see if I could find any footprints.为了看能否找到什么脚印，我做了一番小小的侦察。...
distinct footprints in the mud烂泥里清楚的脚印His footprints were clearly evident in the heavy dust...厚厚的尘土中他的脚印清晰易见。I did a little sleuthing to see if I could find any footprints.为了看能否找到什么脚印，我做了一番小小的侦察。He squatted down beside t...
The acid ewolises nearly as well as the ester.此酸的烯醇化几乎象酯一样良好.Diphenyl carbonate shows a typical vinyl ester effect.碳酸二苯酯表现典型的乙烯的酯类的效应.Ester is one of the most important compounds in Organic Chemistry.酯是有机化学中最主要的化合物之一....
Tungsten is classified among the metals.钨归入金属类.A glass or quartz tube has tungsten electrodes sealed in each end.两根钨丝电极是封在玻璃管或石英管的两端.The tungsten shines and gives a good light.钨丝发亮而射出耀眼的光芒....
Who vouches for your good conduct? "谁是你的保人? ”This paper vouches for the authenticity of the painting.这份文件担保这幅画的可信赖姓.The success of the campaign vouches for the candidate popularity.竞选的成功证实了这位候选人的名望....