Word
15
十五
核心释义
the number fifteen
- 1.
十四加一的基数
the cardinal number that is the sum of fourteen and one
十四加一的基数
用法In use
15 is between 14 and 16 on the number line.
用法提示:此处“15”作主语名词,表示基数十五。
He counted to 15 in English during the game.
用法提示:此处“15”作介词宾语,指数数时到达的基数十五。
If you double 15, the result is 30.
用法提示:此处“15”作动词“double”的宾语,表示作为基数的十五。
15 + plural noun
作定语修饰复数可数名词,表示数量“十五”。
There are 15 students in the classroom.
教室里有15名学生。
at the age of 15
表示年龄,口语中也常简说 at 15。
He left home at the age of 15.
他十五岁时离开了家。
15 percent of + noun
percent 后接 of 再加名词;谓语动词的单复数取决于 of 后面的名词。
15 percent of the students passed the exam.
百分之十五的学生通过了考试。
in + 15 + time unit
“in + 时间段”表示将来“在……之后”,不要与表示时长的 for 混淆。
The train leaves in 15 minutes.
火车十五分钟后出发。
常见错误Common mistakes
易错句子There are fiveteen students in my class.正确表达There are fifteen students in my class.
英语里 15 拼作 fifteen,不是在 five 后面直接加 -teen:five 在 -teen 前要变成 fif-(同理 fifty),所以 fiveteen 是错误拼写。
易错句子She has a fifteen-years-old son.正确表达She has a fifteen-year-old son.
数词加名词作定语修饰另一个名词时,要加连字符并把名词改为单数,即 fifteen-year-old;-s 只出现在作表语的句型 “He is fifteen years old” 中。
相关词与表达Connections
Dictionary facts from ECDICT.