避实击虚

Explanation: Virtual: empty. Where to avoid the main enemy, attack their defensive weaknesses 　　Usage: -Linked; as predicate, object, attribute; for military 　　Source: Qin Sun Tzu "Sun Tzu actual situation": "water line, to avoid becoming the next high; soldiers form, to avoid real and imaginary attack." Thesaurus:  avoid the important and dwell on the trivial, Refuge It can be easily, stay clear of the enemy's main force and, Avoid its elan, hit the idle return, avoid Haymaker ebb, To avoid the strong attacking the weak, Increasingly easy to asylum, consider sth.as it stands