这支队伍需要一位他这样技术水平的司机。The team would have need of a driver of his worth.据报道，该矿事故发生率是全国平均水平的3倍。The mine reportedly had an accident rate triple the national average.北爱尔兰的失业率是全国平均水平的两倍。Unemployment in Northern Ireland is twice...
这样的幼苗具有伸长的下胚轴或上胚轴的特征.Such seedlings are characterized by having elongated hypocotyls or epicotyls.萌发开始时, 下胚轴依靠细胞增大而迅速伸长.At the onset of germination, the hypocotyl elongates rapidly by cell enlargement.有人发现,钙能抑制黄瓜胚轴的伸长.It...