(a) (of the sun or moon) disappear behind a cloud （指日或月）被云遮住
*The sun went in and it grew colder. 太阳进入云层而天气转冷.
(b) (of a batsman in cricket) go to the wicket at the start of one's innings （指板球戏中的击球员）入场击球, 开始一局比赛
*Who's going in next? 下一局谁上场击球? go in for sth
(a) take (an examination) or take part in (a competition) 参加（考试或比赛）
*She's going in for the Cambridge First Certificate. 她将参加剑桥初级证书考试.
* Which events is he going in for at the Olympics? 他参加奥林匹克运动会的什么项目?
(b) choose sth as one's career 选择某事作职业
*Have you ever thought of going in for teaching? 你考虑过以教书为职业吗? go in for sth/doing sth have sth as an interest or a hobby 将某事物当作兴趣或爱好
*go in for golf, stamp-collecting, growing orchids 爱好打高尔夫球、集邮、种植兰花
* She goes in for a lot of sport. 她很喜欢运动.