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流れ， ながれ
1. flow (of a fluid or gas), stream, current
2. flow (of people, things), passage (of time), tide, passing, (changing) trends, tendency
3. course (of events), (step-by-step) procedure, process
4. group of people who remain together after the end of a...
流(流体或气体的流动)，气流；人流、物流，时光流逝，潮汐涨落，(变化的)趋势，倾向；进程(事件的)，(逐步的)程序，过程；血统，祖先，学派
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調べる， しらべる
1. to examine, to look up, to investigate, to check up, to sense, to study, to inquire, to search
查，检查，查阅，调查
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方針， ほうしん
1. policy, course, plan (of action), principle
2. magnetic needle
方针，计划，策略