70 + noun
There are 70 students in the class.
班上有70名学生。
比六十多十个
比六十多十个
being ten more than sixty
The library has 70 new computers this year.
今年图书馆有70台新电脑。
用法提示：70 作定语修饰名词 computers，表示数量七十。
My grandfather is 70 years old and still goes hiking.
我祖父70岁了，仍然去徒步旅行。
用法提示：70 在 age 结构中作形容词性数词，表示年龄七十。
The office is about 70 kilometers from the airport.
办公室离机场大约70公里。
用法提示：70 作定语修饰 kilometers，表示距离七十。
There are 70 students in the class.
班上有70名学生。
常用于表示年龄。
My grandfather is 70.
我祖父70岁了。
grammar · medium
易错句子I am 70th years old.
正确表达I am 70 years old.
年龄表达使用基数词，而非序数词。汉语中年龄也用基数词，但学习者可能误加th。
grammar · medium
易错句子He was born in the 70.
正确表达He was born in the 70s.
表示年代时，数字后应加s（代表年代），不能省略。汉语中“70年代”没有s，但英语需要。
ordinal number
adjective
adjective
ordinal number
adjective
adjective
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