维护工作面
maintaining───n.维护；保养；v.维持；保养（maintain的ing形式）
maintain focus───保持专注
maintain a balance───保持平衡
maintain confidence───保持信心
bargaining for───指望；想以廉价买
have a long face───长着一张长脸
mainlining───n.主导爆索销毁法；把毒品直接注入静脉；v.沉溺于；注入（mainline的ing形式）
maintainable───adj.可维持的；可主张的；可维修的
maintenance───n.维护，维修；保持；生活费用
In this competitive environment, online travel agents and suppliers face the challenge of building and maintaining consumer loyalty.───在如此的竞争环境下，在线旅行社和供应商正面临着建立和维护消费者忠诚度的挑战。
If the DTD is stored externally, you face the interesting possibility of creating and maintaining an enterprise-wide DTD repository.───如果DTD是在外部存储的，您很可能要面临创建和维护企业范围的DTD资源库。
But recent discoveries have suggested that bacteria, too, face compromises between maintaining themselves and reproducing.───然而最近的研究表明，这些细菌也面临着维护自身与繁衍后代的选择。
Those with a short-term view are more inclined towards consumption and tomaintaining faceby keeping up with the neighbours.───那些拥有短期取向的人群更倾向于消耗，注重与邻里保持同步来保存颜面。