合成练习 / Synthetic exercise — no real bookings or people
材料基准 / Reference date: Friday, 2026-10-09
可处理家务的时段 / Available errand time: Saturday 09:00–12:00; Sunday 14:00–17:00.
N1: 退货最晚周六中午完成。物品还没装箱。网点营业时间、路程未知。
    Return deadline is Saturday noon. The item is not packed. Drop-off hours and travel time are unknown.
N2: 维修师傅说「也许周六 10:00–11:00 来」, 尚未确认。
    A repair visit might be Saturday 10:00–11:00; this is not confirmed.
N3: 图书周日 16:00 前归还。书在桌上。图书馆营业时间、路程未知。
    Return a library book by Sunday 16:00. It is on the desk. Library hours and travel time are unknown.
N4: 买一周蔬菜, 预计挑选 30 分钟, 可延期。
    Buy vegetables; allow 30 minutes in the shop. Can be postponed.
N5: 清理储物抽屉, 估计 60 分钟, 无硬截止时间。
    Sort one storage drawer; estimated 60 minutes, with no hard deadline.
N6: 给朋友回一句「下周再约具体时间」, 不要替我发送。
    Draft a reply to a friend: “Let's settle on a time next week.” Do not send it.
练习限制 / Exercise boundary: organize only; no browsing, messages, bookings, calendar edits, or purchases.