reckon something ↔ up phrasal verbphr v British EnglishBrE old-fashioned COUNT/CALCULATEto add up amounts, costs etc in order to get a total 把…加起来,计算…的总数 SYN calculate Pat was reckoning up the cost of everything in her mind. 帕特在心算全部花销。
reckon up• But as for the Manson Classic S, I reckon it adds up like this.
→ reckon something ↔ up at reckon(PHRASAL VERB)