a. 可教的, 听教训的

[ adj ]
ready and willing to be taught
<adj.all>
docile pupils eager for instructionteachable youngsters

Teachable \Teach"a*ble\, a.
Capable of being taught; apt to learn; also, willing to
receive instruction; docile.

We ought to bring our minds free, unbiased, and
teachable, to learn our religion from the Word of God.
--I. Watts.