Expression of hydrogenion concentrations in terms of molar concentrations is rather cumbersome.用摩尔浓度表示氢离子浓度是相当麻烦的.In 1927, at Chou - k'ou - tien, near Peking, a hominid lower molar of unusual pattern was discovered....
Cindy lashed her motorboat alongside.辛迪把她的快艇系在旁边。The motorboat put on speed as soon as it left the pier.汽船一离开码头就加快了速度.The motorboat cut across swift currents and skirted dangerous reefs.汽艇穿过激流,绕过险滩....