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合同， ごうどう
1. combination, union, joining, incorporation, amalgamation, merger, fusion
2. combined, joint, united, shared
3. congruence
组合、联合、加入、合并、兼并、融合；联合的，共同的，统一的，共享的
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開く， ひらく
1. to open, to undo, to unseal, to unpack
2. to bloom, to unfold, to spread out
3. to open (for business, e.g. in the morning)
4. to be wide (gap, etc.), to widen
5. to hold (meeting, party, etc.), to give, to open
6. to found (nation, dynasty, sect,...
举办，召开(会议等)；开门营业；开，打开，开启；绽放、展开、伸展