1. The climacteric is a significant phase of a woman's life when she experiences hormonal changes and potential health issues.
更年期是女性生命中一个重要的时期，这个时期她会经历激素变化和潜在的健康问题。

2. In fruit ripening, the climacteric is the stage when ethylene gas is produced, leading to rapid fruit maturation.
水果成熟过程中，气味产生的阶段被称为转扩减期，这会导致水果迅速成熟。

3. The climacteric in psychology refers to a transitional period characterized by increased self-reflection and introspection.
心理学上的迎头性期指的是一种过渡时期，其特点是自我反思和内省的增加。