rookie

1. N-COUNT A rookie is someone who has just started doing a job and does not have much experience, especially someone who has just joined the army or police force. 新手[美国英语] [非正式]

I don't want to have another rookie to train. 我不想再训练一个新手。

2. N-COUNT A rookie is a person who has been competing in a professional sport for less than a year. 新人[美国英语]

...the oldest rookie on the European Tour. …欧洲巡回赛中年纪最大的新人。