I think it would be building team spirit among my co-workers.
我认为就是我在同事间建立了团队精神。
Henry got a toothache and asked to be excused.
亨利牙疼,请求离开一下。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.