once; already; former; previously; ever; (past tense marker used before verb or clause)[cedict]
看到
kàn dàoㄎㄢˋ ㄉㄠˋ
see (that); note[cedict]
过
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]
一
yīㄧ
one; 1; single; a (article); as soon as; entire; whole; all; throughout[cedict]