1.琳达经常帮助她的弟弟学科学.
Linda often helps her brother study science.
2.他花了半天的时间完成了那项工作.
It takes him half a day to finish that work.(此句是指真正意义上的“半天”即12小时,若“半天”是暗喻很长时间,那就将“half a day” 改为"plenty of time").
1.琳达经常帮助她的弟弟学科学.
Linda often helps her brother study science.
2.他花了半天的时间完成了那项工作.
It takes him half a day to finish that work.(此句是指真正意义上的“半天”即12小时,若“半天”是暗喻很长时间,那就将“half a day” 改为"plenty of time").