vt.

1. 穿过；刺入；透过
   The knife penetrated his chest.

   刀子穿过他的胸腔。

2. 看透；识破
   She had a wig on, but we soon penetrated her disguise.

   她戴了一顶假发，但是我们很快就识穿了她的伪装。

   Not many people managed to penetrate my disguise.

   没有几个人识破我的伪装。

3. 弥漫于；扩散于；渗透入
   The aroma of fresh bread penetrated the whole house.

   满屋子散发着新鲜面包的香味。

4. （感情等）深入于，打动[H][（+with）]
   The whole country is penetrated with fear.

   全国一片恐惧。

5. 了解；洞察[+wh-]
   I could not penetrate the mystery.

   我不能洞察这个秘密。

6. （情报人员的）渗透
   The organization was penetrated and the survivors fled.

   该组织遭到渗透，幸存者已逃逸了。

vi.

1. 穿入；刺入；透过[（+into/through）]
   The rain had penetrated through his clothes.

   雨水湿透了他的衣服。

2. 看透；识破
   He strained his eyes to penetrate beyond the thick cloud of dust.

   他竭力想透过尘埃看清那边的东西。

3. 弥漫；扩散；渗透[（+into）]
   The mist penetrated into the room.

   雾气渗进了室内。

4. （感情等）深入人心，打动人心
   Women's lib has not really penetrated here.

   妇女解放运动在这里并未真正深入人心。

5. 【口】被了解
   The new idea didn't penetrate.

   那个新概念没有被弄懂。

v.

1. go into or through, especially with force.
   ▸(of a man) insert the penis into the vagina or anus of (a sexual partner).
2. infiltrate (an organization, competitor's market, etc.).
3. understand or gain insight into (something complex or mysterious).
4. [as adj. penetrating] (of a sound) clearly heard through or above other sounds.