中国是世界头号造船大国，随着其海军持续快速扩张，特朗普政府正将美国造船业列为国家优先事项。
China is the world's top shipbuilder, and as it rapidly continues to expand its navy, the Trump administration is making American shipbuilding a national priority. We went inside a US naval shipyard to see how these vessels are built and why expanding America's fleet may be harder than it sounds.
我们走进美国海军造船厂，了解这些舰船如何建造，以及为何扩大美国舰队可能比听起来更难。
Show more