大多数物质，如牛奶和水都是反磁体，即他们会排斥外来磁场，这种现象很微弱，在常规条件下是几乎是观察不到的。
Most materials, including milk and water, are diamagnetic, which means they are repelled by external magnetic fields-though this phenomenon is far too subtle to be observed in normal circumstances.
有些如步行和唱歌能够同时发生，有些会互相排斥，如睡觉和弹奏钢琴。
Some can take place in parallel, like walking and singing;others are mutually exclusive, such as sleeping and playing the piano.
项目认为风险来自弱势，如：性别歧视、贫困、无国籍、社会排斥，而不仅仅是个人行为。
Programs recognize that risk is defined by vulnerabilities - such as gender inequality, poverty, statelessness, social exclusion - and not only by individual behaviors.
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