潜水员下潜到超过危险线的深水中去了.The diver went into the deep water beyond the danger limit.为了下潜,里边还有个密封小水槽―负槽.For diving there's small sealed tank inside, the negative tank.潜水艇的下潜速度非常快.Submarine can submerge very quickly....
But as other shops fold, the march of the superstores continues.但在其他商店纷纷关门倒闭之时，大型超市的强劲扩张势头却依旧不减。He continues to insulate his country from the contagion of foreign ideas.他继续使本国远离外来思想的侵袭。The main road continues towards Vit...