half an hour later she woke up.还有这half an hour为什么等于thirty minutes.

half an hour later she woke up.还有这half an hour为什么等于thirty minutes.
half an hour later she woke up.还有这half an hour为什么等于thirty minutes.

half an hour later she woke up.还有这half an hour为什么等于thirty minutes.
半小时以后她醒了
half是一半的意思 half an hour是半小时
thirty minutes就是说三十分钟

1.半小时后她醒来
2.一个半小时
3.30分钟
2.3.他们意思都一样啊 我不知道

half an hour（半个小时）thirty minutes（30分钟）
半个小时不就是30分钟吗！
半小时后她终于醒了。