The walls had been painted an eggshell white.墙面用蛋壳漆刷成了白色。The processing of calcium acetate from eggshell was studied.以鸡蛋壳为原料,研究制备醋酸钙的工艺技术.Over time, the protein in the eggshell breaks down into its constituent amino acid...
小农场主陷于无效率的境况中,只为生存下去而苦苦挣扎.The small family farm is steeped in inefficiently and struggles just to survive.再就是急诊室却被作为日常非卧床护理既不方便也无效率.Hospital emergency rooms are inconvenient and inefficient sources for routine ambulatory...