Etna is Europe's most active volcano.埃特纳山是欧洲最活跃的火山。For several weeks, Italy's Mount Etna has been rumbling with volcanic activity.几个星期来, 意大利的蒙特·艾特纳的火山轰轰隆隆.How does Etna produce its fiery mix of magmas?埃特纳如何制造出它...
The king fared forth , attended by all his servants and many carriages.在全体奴仆、车辆的伴随下,国王出发了.Two extra carriages were joined on the train at York.火车在约克又挂上了两节车厢.In what stables champed these sleek , nervous horses and rested...
与其说是游泳池,倒不如说它更象一条河湾.It was more like the bend of a river than a bath.过渡段浅滩发生在连续河湾之间.Crossing bars occur between successive bends.我们也认识到在河湾内控制影响的多样性和复杂性.We also recognize the diversity and complexity of controlling in flu...