engagement/ ɪn'geɪʤmənt /

1.noun [c] [frm] 
(appointment) 约会

2.noun [c] 
(to marry) 婚约

3.noun [c/u] [军] 
(battle) 交战

4.noun [c] 
(employment) 受聘期

I have a previous engagement
我有个前约
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