PHRASAL VERB 草草做成（或建成）；匆匆拼凑成 If you knock something together, you make it or build it very quickly, using whatever materials are available. 草草做成（或建成）；匆匆拼凑成 [mainly British, informal] [Also VERBPREPOSITION n (not pron)]
Find Bernie and get him to knock an agreement together. [VERB noun PREP.]
找到伯尼，让他尽快拟好一份协议。
...a shelter knocked together using wooden doors and door frames. [VERB-ed PREP.]