1. 侧翼包抄
In a battle, when one group of soldiers outflanks another, it succeeds in moving past the other group in order to be able to attack it from the side.

2. 占…的上风
If you outflank someone, you succeed in getting into a position where you can defeat them, for example in an argument.

1. get the better of

e.g. the goal was to best the competition

Synonym: outdotrumpbestscoop

2. go around the flank of (an opposing army)

Synonym: go around