Columbus' accomplishment, once accepted, enabled mankind to use the existing skills of seacraft for vastly greater undertakings . 哥伦布的业绩一旦被接受，就使人类能利用现有的航海技术从事更伟大的事业。
2.
With three thousand - ton - level ports , binhai port is the second class open port and seacraft can directly sail to dalian , qindao and shanghai 拥有3座千吨级码头的滨海港是国家二类开放口岸，大型海轮可直航大连、青岛、上海。
