once; already; former; previously; (past tense marker used before verb or clause)[cedict]
surname Zeng; great-grand (father)[cedict]
在
zàiㄗㄞˋ
(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
出現
chū xiànㄔㄨ ㄒㄧㄢˋ
to appear; to arise; to emerge[cedict]
過
guòㄍㄨㄛˋ
(experienced action marker); to cross; to go over; to pass (time); to celebrate (a holiday); to live; to get along; excessively; too-; surname Guo[cedict]