他每天花半小时步行去学校 英语翻译

你好,应该是：

It takes him half an hour to walk to school
或
It takes him half an hour to go to school on foot.

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He walks to school for about half an hour everyday.

It takes him about half an hour to go to school on foot everyday.

He spends about half an hour to go to school on foot every day.

( 加 about 的原因是不可能是完完整整的半个小时，不差一分一秒，所以只能用 about 大约 )

it takes him about half an hour to go to school every day. 答案补充 你写的也对得了

It takes him half an hour to go to school every day.
He spends half an hour walking to school every day.
第一种写法语法上没有错,但并不正式,所以不多用.

It takes him half an hour to walk to school every day.
或It takes him half an hour to go to school on foot every day.
或He spends half an hour in walking to school every day.(in可以写可以不写)
(half an hour应该可以换成30 minutes)