English:  life jacket
Chinese:  救生衣 (jiù shēng yī)    
Traditional Chinese:  
Japanese:  救命胴衣 (きゅうめいどうい)  
French:  gilet de sauvetage m.  
Spanish:  chaleco salvavidas m.  
German:  die Schwimmweste  

• jacket [´dʒækit]   n.茄克衫；外套   (初中英语单词)