He carved the joint of beef.他切开了那一大块烤牛肉。They used to buy ten kilos of beef in one lump.他们过去常买10公斤重的整块牛肉。Tapeworms: Taenias - fish tapeworm, beef tapeworm, and pork tapeworm.绦虫: 软体 - 鱼绦虫, 牛绦虫及猪绦虫.roast beef and horseradis...
The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.谷酰胺或天门冬酰胺的酰胺氮作用较氨更有效.Trial and error revealed that it was best to put in the amide before the epoxide.尝试和误差法表明,最好在环氧化之前引进酰胺基.By the am...