半小时后 翻译英文
问题描述：
半小时后 翻译英文
答
A half hour later
答
after half an hour
或after 30 minutes
答
in half an hour 用于将来时句中
after half an hour 用在句末
half an hour later 独立用（用逗号与其它句子隔开）
答
after half an hour
答
half an hour later
in half an hour
after half an hour