(IP (NP-SBJ (-NONE- *pro*))
(VP (VP (ADVP (AD 不))
(VP (VV 必)
(VP (VV 强迫))))
(PU ，)
(VP (ADVP (AD 不))
(VP (VV 必)
(VP (ADVP (AD 痛苦))
(VP (VV 练球)))))
(PU ，)
(VP (IP-ADV (NP-SBJ (-NONE- *PRO*))
(VP (ADVP (CS 只要))
(VP (VV 喜欢))))
(PU ，)
(ADVP (AD 就))
(VP (VV 可)
(VP (VV 打好)
(NP-OBJ (NN 球)))))))
ARG0: *pro*
ARGM-ADV: 痛苦
ARGM-ADV: 不
REL: 练球