细胞的这种向里推进标志着原肠胚形成的开始.This pushing - in of cells marks the start of gastrulation.外胚层囊胚的外层,在原肠胚形成之后生后外胚层组织.The outer layer of a blastula that gives rise to the ectoderm after gastrulation....
He managed to wheedle his way into the offices.他连哄带骗地设法进了办公楼。Cross decided to beg and wheedle a bit.克罗斯决定用上点乞求和哄骗。I knew he was trying to wheedle me into being at his beck and call.我知道这是他拉拢我,好让我俯首贴耳地为他效劳....
陆龙卷中心的地面气压如图7.26所示.The surface pressure at the centre of the tornado is shown in Figure 7.26.水龙卷和冰雹偶有出现, 降雪和陆龙卷则属罕见.Waterspouts and hailstorms occur infrequently , while snow and tornadoes are rare....