在两条道路的交叉点发生了一起事故.An accident happened at the meeting of two roads.每个交叉点上的一条边的长度和方位角是一开始就决定的.The length and azimuth of one side at each junction point is first decided on.在那两条街道的交叉点有一所邮局.There is a post office at the junc...
Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。The Pike lives mainly in large rivers and lakes.狗鱼主要生活在大江大湖中。We were driven across this wondrous vast land of lake...