out-,向外，flank,边，侧翼。引申词义包抄。

1. He had tried to outflank them.

他曾试图占据上风，胜过他们。

2. Why had it not been possible to outflank them in some way?

为什么没有办法从侧翼包抄他们 呢 ?

3. It must have been possible to outflank them in some way.

从侧翼包抄他们应该是有可能的.

4. The Persians could use it to outflank us.

波斯人能从那里侧翼包围我们.

5. If your flank march is going well, the enemy expects you to outflank him.

如果你的侧翼包抄进行的很顺利, 是因为敌人正期待着你从侧翼接近他们.