Deak is an expert in juvenile delinquency.
迪克是研究青少年犯罪的.专家。
He is an expert in juvenile delinquency.
他是研究青少年犯罪的专家。
He had no history of delinquency.
他没有违法记录。
I am reluctant to trust anyone totally, Your Excellency
我不想完全相信任何人，阁下。
His excellency the President will be waiting for you in the hall.
总统阁下会在大厅等你。