penetration
/ˌpenɪˈtreɪʃn; ˌpɛnə`treʃən/ n[U]
1 (action or process of) penetrating 进入; 穿过; 充满; 看穿; 洞察; 领悟
our penetration of the enemy's defences 我军对敌人防线的突破.
2 ability to think and understandquickly and deeply 洞察力; 领悟力
the penetration of her mind/her powers of penetration 她的悟性.