The flat character tends to serve mainly as a motivating factor.

扁平的人物往往主要作为一个推动因素。

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As it stands now, a flat tax would serve as a cost and penalty placed on economy-boosting endeavors.

FORBES: A Flat Tax Would Be Fine, A Consumption Tax True Perfection

Brian Mason will serve a minimum of 12 years for the murder of Gillian Rennie, 58, at his flat in Croydon Road, Birmingham, in December 2011.

BBC: Gillian Rennie murder: Brian Mason jailed for life

He was ordered to serve a minimum of 22 years, after "partially severing" his victim's head at the flat in Bensham.

BBC: Gateshead head-severing: Karl Bestford jailed for murder