zìyuàn
See also:
zìyuán
and
zīyuán
Mandarin
Romanization
zìyuàn
(
Zhuyin
ㄗˋ ㄩㄢˋ
)
Hanyu Pinyin
reading of
自願
/
自愿
Hanyu Pinyin
reading of
自怨