historically

It was good drama, but historically inaccurate.

戏倒是出好戏，但与史实有出入。

Inland river freight costs are historically high for a tight supply of barges, increased operating costs, and higher demand moving commodities upbound on the major rivers.

由于驳船数量有限、经营成本及各主要河流的北向运输需求增加，本年度内陆河流的运费达到了历史最高水平。

Noteheads may be black (a circular or oval shape filled in) or white and are used on the staff to indicate pitch. The shape of noteheads has differed historically, as in plainchant.

符头可是黑色的（圆形或卵形）或白色的，用在五线谱表明音高。符头的形状在历史有很多种，比如在单音歌颂中。