collect something ↔ up phrasal verbphr v British EnglishBrE to pick up several things, and put them together 〔把东西〕收拾好，收起来 SYN gather up Can you collect up all the dirty plates and cups? 你把所有脏盘子和杯子收拾一下好吗？
collect up• And I also learned there is more to shell collecting than picking up a few for the condo coffee table.• Now she collects and builds up her stores all year round.
→ collect something ↔ up at collect1(2)