Final answer:
The traditional Chinese calendar and the Jewish calendar are both lunisolar, accounting for the Sun's and the Moon's movements to mark time.
Step-by-step explanation:
The key similarity between the traditional Chinese calendar and the Jewish calendar is that both are lunisolar calendars, meaning they are based on both the Sun's and the Moon's movements. These calendars are structured to account for the incommensurable lengths of the day, month, and year. They do this by incorporating both the solar cycle (yearly changes associated with the Earth's orbit around the Sun) and the lunar cycle (phases of the Moon) into their systems. This helps to mark the passage of time throughout long spans, allowing anticipation of seasonal changes and honoring religious or personal anniversaries.