他在一小时内接了十二只电话.He had twelve phone calls in the space of an hour.我会在电话铃响四声内接起电话.I answer the telephone within four rings.实验壳体采用单曲率椭球内接多面壳体.A single curvature shell of an inscribed ellipsoid was used as the experimental sh...
一种想法的雏形the embryo of an idea现代自行车的雏形the prototype of the modern bicycle他的机械计算机是现代电子计算机的雏形.His mechanical calculating engines were the antecedents of the modern computer....