求翻译：美国则三面临海,这个差别是海洋赋予美国的：海洋的多变，时而凶险、时而平静，使得游历在海洋上的美国人具有探索冒险和富于进取的精神。是什么意思？

The United States three facing the sea, this difference is given to the United States Marine: the ever-changing ocean, sometimes dangerous, sometimes calm, making travel in the ocean on the Americans with exploration and entrepreneurial spirit of adventure.

正在翻译，请等待...

Then US three faces the sea, this difference is the sea entrusts with US: Sea changeable, from time to time bad risk, from time to time tranquil, causes to travel for pleasure on the sea American has the exploration to take risk and to be rich in the enterprising spirit.

United States sea on three sides, this difference is the ocean gives United States: marine and ever-changing, sometimes dangerous, and sometimes calm, makes Americans who travel over the ocean exploration adventures and wealth to the enterprising spirit.

The United States three facing the sea, this difference is given to the United States Marine: the ever-changing ocean, sometimes dangerous, sometimes calm, making travel in the ocean on the Americans with exploration and entrepreneurial spirit of adventure.