v pass into or through, often by overcoming resistance
v come to understand
v become clear or enter one's consciousness or emotions
v enter a group or organization in order to spy on the members
v make one's way deeper into or through
v insert the penis into the vagina or anus of
v spread or diffuse through
s having or demonstrating ability to recognize or draw fine distinctions
s tending to penetrate; having the power of entering or piercing
a. 敏锐的, 尖锐的, 伸入很深的, 了解透彻的
[医] 穿透的