adj.重要的，意义深远的，不朽的，非常大(或好、坏、蠢等)的，作为纪念碑的，纪念碑上的

We have a monumental gold medal.
我们有一枚有纪念意义的金牌。
They must act now to avert a disaster of monumental proportions.
他们必须立即采取行动防止灾难严重性的后果。
We are arguing about the document of the monumental instrument.
我们在辩论关于那件不朽乐器的文献.
The Great Wall of China stands as a monumental testament to the determination and engineering prowess of ancient civilizations.
中国的长城作为古代文明决心和工程技艺的丰碑巍然屹立。
The Taj Mahal, with its intricate marble carvings and exquisite design, is a monumental symbol of love and devotion.
泰姬陵以其精美的大理石雕刻和精致的设计，成为爱与奉献的宏伟象征。
The construction of the Statue of Liberty was a monumental undertaking that celebrated freedom and welcomed immigrants to the United States.
自由女神像的建造是一项庆祝自由、迎接移民进入美国的宏大规模工程。
Mount Rushmore, featuring the monumental faces of four U.S. presidents, is an iconic monument to American history and democracy.
拉什莫尔山，刻有四位美国总统的巨大头像，是美国历史与民主的标志性丰碑。
The Pyramids of Giza are monumental structures that have stood the test of time, revealing the advanced knowledge and skill of the ancient Egyptians.
吉萨金字塔作为经受住时间考验的宏伟建筑，展现了古埃及人先进的知识与技能。
The completion of the Suez Canal was a monumental achievement in engineering, revolutionizing global trade by connecting the Mediterranean Sea to the Red Sea.
苏伊士运河的建成是工程学上的巨大成就，通过连接地中海与红海，彻底改变了全球贸易。
Nelson's Column in London's Trafalgar Square is a monumental tribute to Admiral Horatio Nelson, commemorating his heroic victories at sea.
伦敦特拉法加广场上的纳尔逊纪念柱是对霍雷肖·纳尔逊海军上将的宏大致敬，以纪念他在海战中的英勇胜利。
Machu Picchu, the "Lost City of the Incas," is a monumental archaeological site, revealing the architectural genius and cultural richness of the Inca civilization.
马丘比丘，即“印加失落之城”，是一个展示印加文明建筑天才和文化丰富性的宏大考古遗址。
The Eiffel Tower, originally built as a temporary exhibit for the World's Fair, has become a monumental icon of Paris and a symbol of French ingenuity.
埃菲尔铁塔最初为世界博览会的临时展览而建，现已成为巴黎的标志性建筑，象征着法国的创造力。
The construction of the Panama Canal, a monumental feat of engineering, forever changed international maritime trade by creating a shortcut between the Atlantic and Pacific Oceans.
巴拿马运河的建设是一项改变国际海上贸易的工程壮举，它在大西洋和太平洋之间开辟了一条捷径。