- 层: I storey; tier; stratum
- 缺: be short of; lack
- 间断: be disconnected; be interrup ...
- 层缺: break in sedimentation; stratigraphic break
- 间断: be disconnected; be interrupted; interval; leapfrogging; disjunction; break hiatus; hiatus; interruption; stop; pulsation; [地质学] gap 战火一刻也没有间断过。 never for a moment has the fire of war ceased. 她坚持锻炼, 多年来从未间断。 she has kept up physical training for several years without interruption
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