1·The swift growth of this merchant marine diversified the northern colonial economy and made it more self-sufficient.
这艘商船的迅速发展使北方殖民地经济多样化，使其自给自足的能力更强。
2·This restriction not only contributed to Great Britain's rise as Europe's foremost shipping nation but also laid the foundations for an American shipbuilding industry and merchant marine.
这一限制不仅促成了英国作为欧洲最重要的航运国家的崛起，也为美国的造船业和商船奠定了基础。
3·The girl, named Wu Xun, is the only female student among all her classmates majoring in marine engineering at Shanghai's Merchant Marine College.
女主角名叫吴迅，是上海海事大学商船学院轮机工程专业全系唯一一名女生。
4·His brother is in the merchant Marine.
他的兄弟是名商船船员。
5·Having gone to the U. S. Merchant Marine Academy in Kings Point, new York, I knew I could get a high-paying job as an officer on a ship.
他领教到美国商船学院在国王的观点，纽约，我知道我能得到一份高薪的工作是一名军官在一艘船上。