vt.
穿过；穿透；透过：
The nail easily penetrated the soft wood.
钉子很容易地就穿透了软木材。
刺入，刺透：
The knife penetrated enemy's stomach.
刀子刺穿了敌人的肚子。
弥漫于；扩散于：
The foul odor penetrated the entire house.
难闻的臭气弥漫于整个房间。
伸入，进入，打入：
The army penetrated the territory of enemy.
部队进入敌人领