It's good for our health to go to sleep earily.
That engineer hasn't been at home since three years ago.
He said nothing in English class yesterday.
英语翻译早睡早起身体好(do good)那位工程师已经三年没回家了（since)他在昨天英语课上没发言（say)
It's good for our health to go to sleep earily.
That engineer hasn't been at home since three years ago.
He said nothing in English class yesterday.