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--- References to
夜勤 yakin night work   Ref. 勤 [work]
勤務 kinmu duty | service | work   Ref. 勤 [work]
勤務時間 kinmujikan office hours   Ref. 勤 [work]
勤務日 kinmubi workday   Ref. 勤 [work]
勤務中である kinmuchū de aru to be on duty   Ref. 勤 [work]
→ 転勤 する tenkin suru to be transferred Ref. 勤 [work]
→ 通勤 する tsūkin suru to commute to work Ref. 勤 [work]