against的英标是[əˈgeɪst]，发音是['ə'geɪst]，意思是“反对；倚；紧靠着”。
against的用法：
1. 表示“反对”，其后通常接名词或代词作宾语。
2. 表示“靠着；抵着”时，against可作介词和副词，后面可接名词、代词或无生命的名词充当补足语的复合结构。
3. 此外，against还表示“与…相反”时，通常用于with的复合结构中。
分别的发音是[bi'eɪn]，分别的用法可以表示分离；区别；差别；各个；各个的；分头行动；分别地。
分别的记法可以谐音为“别闹吻”，帮助记忆。同时，可以理解为“分开的点”来帮助记忆。
against是一个英语单词，可以用作介词和副词，表示反对、抵抗、与…相对等含义。
根据不同的物理现象，可以组成不同的短语：
against the flow of traffic（逆向人流或车流）
against the current of opinion（与大众意见背道而驰）
against the wall（背靠墙）
其他常见的物理现象还有热胀冷缩、摩擦力、电磁波、声音传播等。在这些物理现象中，against可以表示与某种物理规律或现象相对立或抵抗的含义。例如，在热胀冷缩中，物体在温度变化时会产生膨胀或收缩的现象，而against则表示物体抵抗这种变化，尽力保持原有形态。在摩擦力中，物体表面之间的摩擦力是由于接触面之间的相互运动引起的，而against则表示物体与接触面之间产生阻力，阻碍物体的相对运动。
总的来说，against可以用于描述与某种物理规律或现象相对立或抵抗的物理现象。
Title: Managing Against Risk: A Key Component of Effective Business Operations
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