“seven-year-old”例句

单词 seven-year-old 例句 DEFINITIVE EXAMPLES 权威例句〔add up〕More than a quarter of seven-year-olds cannot add up properly.超过四分之一的7岁儿童不会正确地做加法。外研社新世纪〔boisterous〕It was a challenge, keeping ten boisterous seven-year-olds amuse...