This question asks about the usual time when children engage in activities. When answering, you can consider children's daily schedules, such as school time, extracurricular activities, family activities, and rest time. Different activity times can be discussed based on the child's age, cultural background, and family habits.

這個問題詢問的是孩子們通常在什麼時間進行活動。在回答時，可以考慮孩子們的日常生活安排，例如上學時間、課外活動、家庭活動以及休息時間。可以根據孩子的年齡、文化背景和家庭習慣來討論不同的活動時間。