历史学家研究的是人类文明的连续性。

Historians study the ___continuity of human civilization.

这个故事缺乏连贯性，角色动机前后矛盾。

The story lacks ___continuity, with inconsistent character motivations.

导演要求演员保持相同的姿势以确保镜头之间的连贯性。

The director asked the actors to maintain the same posture to ensure ___continuity between shots.