There may be certain times of day when smokers crave their cigarette.吸烟者可能会在一天中的某些时刻特别想吸烟。May I crave your attention?我可以请你注意一下 吗 ?Many young children crave attention.许多小孩子渴望得到关心....
腔肠动物的刺针对于外界的刺激很敏感.The stings of coelenterates are quite sensitive towards outside stimulation.根据颧弓最高点间距可推算卵圆孔穿刺时穿刺针进针的深度.Depth of puncture can be deduced according to interval of apogee of malar archs.切割套管然后迅速转动穿刺针获取组织样本...