极限

In a sentence

• 一名登山者正在挑战攀登高峰的极限。

  A climber is challenging the limits of climbing peaks.

  In this sentence, "极限" refers to the maximum capabilities or boundaries a climber aims to surpass, illustrating its use in expressing ultimate constraints or challenges.

• 学术研究应当追求知识的极限。

  Academic research should aim at the limits of knowledge.

  Here, "极限" is applied metaphorically to denote boundaries or the extent to which knowledge can be pursued and expanded, showing its abstract usage in intellectual contexts.

• 这辆跑车在赛道上快到了它的极限速度。

  This sports car is approaching its maximum speed limit on the track.

  In this context, "极限" is describing the measurable maximum capacity (speed) of the sports car, emphasizing its practical application in describing performance thresholds.