to dash / to move forward quickly / to bulge / to protrude / to break through / to rush out / sudden / Taiwan pr. [tu2]
突
=
犬
+
穴
:
Tommy Turtle (tu) is painting cave paintings (穴) onto the saint bernard dog (犬) while he is sleeping in front of the space station (Ø1), but suddenly (突) the saint bernard dog wakes up and dashes (突) at Tommy Turtle after he quickly finds out what Tommy did to him.