Dhanji: Put very simply, dependency injection is the idea that instead of going out and finding all the things you need, you as a service, let them come to you.
Dhanji：非常简单的说，依赖注入的思想是不去主动获得你需要的东西，而是相反，你自己作为一种服务，让需要的东西来找你。
She put the paintings in the bedroom, and took the boxes out to the service entrance of the building.
他把画放在卧室里，然后把纸箱搬到了这所房子供服务人员出入的便门外面。
Heroes are not extraordinary people. They're ordinary people who do an extraordinary thing, step out of themselves, put their best self forward in service to humanity.
英雄不是非比寻常的人，他们是做了不寻常的事情的普普通通的人，在关键的时候他们挺身而出，展现出人类最美好的本性。
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