白露是第15个节气，它始于太阳到达天文经度165°，结束于太阳到达天文经度180°。
White Dew is the 15th solar term. It begins when the sun reaches the celestial longitude of 165° and ends when it reaches the longitude of 180°.
白露意味着凉爽秋天真正到来了。气温开始逐渐下降，夜晚，水汽在草木上凝结而成为白色的露珠。
White Dew indicates the real beginning of the cool autumn. The temperature declines gradually and the vapors in the air often condense into white dew on the grass and trees at night.
（文/王芳，图/王芳，编辑/苏秀娟，审核/王俊华）
