1
during + World War II
Many technological advances were made during World War II.
第二次世界大战期间取得了许多技术进步。
第二次世界大战；二战
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第二次世界大战；二战
a war between the Allies (a coalition of countries including Australia, Belgium, Brazil, Canada, China, France, Greece, and many others)
Many technological advances were made during World War II.
第二次世界大战期间取得了许多技术进步。
1939年至1945年间,同盟国(澳大利亚、比利时、玻利维亚、巴西、加拿大、中国、哥伦比亚、哥斯达黎加、古巴、捷克斯洛伐克、多米尼加共和国、萨尔瓦多、埃塞俄比亚、法国、希腊、危地马拉、海地、洪都拉斯、印度、伊朗、伊拉克、卢森堡、墨西哥、荷兰、新西兰、尼加拉瓜、挪威、巴拿马、菲律宾、波兰、南非、英国、美国、苏联、南斯拉夫)与轴心国(阿尔巴尼亚、保加利亚、芬兰、德国、匈牙利、意大利、日本、罗马尼亚、斯洛伐克、泰国)之间的战争。
a war between the Allies (Australia, Belgium, Bolivia, Brazil, Canada, China, Colombia, Costa Rica, Cuba, Czechoslovakia, Dominican Republic, El Salvador, Ethiopia, France, Greece, Guatemala, Haiti, Honduras, India, Iran, Iraq, Luxembourg, Mexico, Netherlands, New Zealand, Nicaragua, Norway, Panama, Philippines, Poland, South Africa, United Kingdom, United States, USSR, Yugoslavia) and the Axis (Albania, Bulgaria, Finland, Germany, Hungary, Italy, Japan, Rumania, Slovakia, Thailand) from 1939 to 1945
My grandfather fought in World War II.
我祖父参加了第二次世界大战。
Many books have been written about World War II.
许多书是写第二次世界大战的。
World War II ended in 1945.
第二次世界大战于1945年结束。
Many technological advances were made during World War II.
第二次世界大战期间取得了许多技术进步。
The United Nations was founded after World War II.
联合国是在第二次世界大战后成立的。
注意：这种结构可以修饰名词，表示与二战相关的。
He is a World War II veteran.
他是一位第二次世界大战退伍军人。
Not this
He fought in the World War II.
Use this
He fought in World War II.
World War II 是专有名词，前不加定冠词 the。中国学习者常受中文‘第二次世界大战’中‘第’的影响而加 the，但英语中直接使用 World War II。
Not this
Many people died at World War II.
Use this
Many people died during World War II.
表示‘在二战期间’应使用介词 during 或 in，而不是 at。at 通常用于具体时间点或地点。
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