我一小时前完成的。
I finished it an hour ago.
接下来的两个月里，我每天练习一小时同样的曲子。
I practised the same composition for an hour a day for the next two months.
政府建议学龄儿童每天至少活动一小时。
The government recommends that school-age children be active for at least an hour each day.
一小时后，其他孩子出现了，我意识到我被我哥哥骗了。
After an hour, the other kids showed up, and I realized that my brother had fooled me.
我将在一小时后见你。
I will meet you in an hour.
