Word · Frequency #2690
eighteen
/eɪˈtiːn/
numeral
十八
核心释义
the number 18; one more than seventeen and one less than nineteen
- 1.
在十七之后和十九之前的基数,罗马数字为XVIII,阿拉伯数字为18
The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.
在十七之后和十九之前的基数,罗马数字为XVIII,阿拉伯数字为18；十八个
用法In use
There are eighteen students in our class.
用法提示：“eighteen”为基数词，表示数量“十八”。
She turned eighteen last month.
用法提示：“eighteen”为基数词，此处表示年龄“十八岁”。
The book has eighteen chapters.
用法提示：“eighteen”为基数词，修饰名词表示“十八”。
eighteen years old
作表语说明年龄,主语通常是人。
My sister is eighteen years old.
我妹妹十八岁。
at (the age of) eighteen
介词短语 at eighteen 指“在十八岁那年”,用于说明人生阶段。
She left home at eighteen.
她十八岁时离开了家。
相关词与表达Connections
搭配Collocations
- eighteen years old
- 十八岁
- She is eighteen years old and about to start college.她十八岁，即将上大学。
- eighteen-wheeler
- 十八轮大卡车；重型卡车
- An eighteen-wheeler blocked both lanes of the highway.一辆十八轮大卡车堵住了高速公路的两条车道。
- eighteen holes
- 十八洞（标准高尔夫球场）
- We played all eighteen holes before it got dark.天黑前我们打完了全部十八个洞。
- turn eighteen
- 满十八岁
- You can vote once you turn eighteen.你满十八岁就可以投票了。
- eighteen and over
学习提示Learner notes
语法说明Grammar Note
作定语时后接复数可数名词，如 eighteen students；也可独立用作代词，如 Eighteen of them are here.
用法优先级Usage priority
Collins 词频等级为 5，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.