统一指挥意味着员工应该只接受一个上级的命令。

The sense of smell is a powerful and primal sense that connects us to the world in a unique way.

The progress of science consists in the expansion of the field of experience.

译文：不吝惜花很多钱买一把宝刀，用貂皮大衣换酒喝也堪称豪迈。要多多珍重这一腔热血，洒出去还能化作汹涌的波涛。