He hurt his back playing basketball=He hurt his back while he was playing basketball.
他在打篮球时伤到了背部.
playing basketball 是动词-ing形式,在句子中做伴随状语.
【公益慈善翻译团】真诚为你解答!
He hurt his back playing basketball=He hurt his back while he was playing basketball.
他在打篮球时伤到了背部.
playing basketball 是动词-ing形式,在句子中做伴随状语.
【公益慈善翻译团】真诚为你解答!