Unit 174. I'm all booked up.
第174单元 我行程已排满，腾不出时间。
A: Jack, could you check your calendar?
甲：杰克，请你查查日程表好吗？
B: Sure, what's going on?
乙：好啊，怎么了？
A: We're planning a weekend camping trip, and we want to know which weekend is best for everyone.
甲：我们正计划举办一次周末露营之旅，但要看哪个周末最适合大家。
B: Let me see... The weekend after next looks pretty good.Otherwise, I'm all booked up.
乙：我看看……下下个周末似乎不错。否则，我就抽不出时间了。

类似用语
I've got plans.我已有计划。
I've something to do.我有事要办。

百宝箱
本句中，“be booked up”表示“计划已排（订）满的”，但book亦可作及物动词，表示“预约（订）"，相当于另一动词reserve。
I'd like to book/reservea table for five this evening.
= I'd like to make areservation for a table for five this evening.
（我今晚想预订一张5人座的餐桌。）