(àn zhōng, ㄢˋ ㄓㄨㄥ) in the dark; in secret; on the sly; surreptitiously [CE-DICT]
飛躍
(ひやく) (n,vs) (1) leaping; activity; (2) leapfrog (over a problem); making a leap (e.g. in logic); (3) making great strides; making rapid progress; (4) emerging; (5) becoming active; playing an active part; (P) [EDICT]
(àn zhōng, ㄢˋ ㄓㄨㄥ) in the dark; in secret; on the sly; surreptitiously [CE-DICT]
飛躍
(ひやく) (n,vs) (1) leaping; activity; (2) leapfrog (over a problem); making a leap (e.g. in logic); (3) making great strides; making rapid progress; (4) emerging; (5) becoming active; playing an active part; (P) [EDICT]