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、经营成本上升以及各主要河流北向输需求增加，本年度内陆河流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.

符头可以是黑色（圆形或卵形）或白色，用在五线谱上以表明音高。符头形状在历史上有很多种，比如在单音歌颂中。