kłody

In a sentence

• Na drodze leżały kłody drzew, utrudniając przejazd.

  There were logs of trees lying on the road, making passage difficult.

  Here, the word 'kłody' refers to literal logs that obstruct a path.

• Ciągle rzucasz mi kłody pod nogi, a ja próbuję iść dalej.

  You keep throwing obstacles in my way, but I try to keep going.

  In this context, 'kłody' is used metaphorically to mean obstacles or difficulties.

• W tartaku przetwarzano kłody na deski.

  In the sawmill, logs were processed into planks.

  Here, 'kłody' again refers to physical logs, specifically as raw material for production.