to harness / to draw (a cart etc) / to drive / to pilot / to sail / to ride / your good self / prefixed word denoting respect (polite 敬辭|敬辞[jing4 ci2])
驾
=
加
+
马
:
Today the unicorn (马) is going to pilot (驾) a plane for the first time. As it gets ready in the ashram's bathroom (a4), Joan of Arc (ji) is cheering waving with her pom poms (加).
(of a vehicle, horse etc) to go fast; to speed / (of a vehicle) to run; to go / (of a boat) to sail
驶
=
史
+
马
:
Sherlock Holmes (sh) tells the unicorn (马) that it has to take its history (史) examination in the space station (Ø3) immediately. The unicorn is shocked and gallops (驶) away speedily (驶).