He shows complete mastery of his chosen subject.

他精通自己选择那门目。

Many of the subjects a prospective hotelman studies are in the field of business administration.

有志于当旅馆经理人所学目多属于业务管理。

Three subjects must be taken, viz., English, mathematice and history.

三个目是必修, 英文, 数学和历史。

An encyclopedia covers many subjects.

百内容涉及许多目。

Detail! For inspection—port arms!.

目！检阅——斜持枪！。