经过大量研究，艾伯特·霍夫曼于1938年首次成功合成了该酸性物质。After extensive research, Albert Hoffman first succeeded in synthesizing the acid in 1938.霍夫曼博士是在莱斯特大学读的研究生。Dr Hoffman did his postgraduate work at Leicester University.9 岁 的埃米莉-霍夫曼来自得克萨斯...
The gleaners gathered up the loose ears of corns.拾谷穗的人把掉落的谷穗收集起来.Only,'he added,'I'm glad I trod on Master Pew's corns;'不过, ” 他说,接着又补充说, “ 我的马踩倒了皮武先生,我还是感到很高兴. ”We must tread on each other's...
The primary chalazal haustorium ramifies around the vascular tissues of the ovule.初生合点吸器沿着胚珠的维管组织分支.Seed development in most instances commences following fertilization of the ovule.大多数种子的形成是从胚珠受精开始的.Frequently the basal...