質的飛躍

qualitative leap

character / nature / quality / plain / to pawn / pledge / hostage / to question / Taiwan pr. [zhi2]

see 的士[di1 shi4]

really and truly

of; ~'s (possessive particle) / (used after an attribute) / (used to form a nominal expression) / (used at the end of a declarative sentence for emphasis) / also pr. [di4] or [di5] in poetry and songs

(bound form) bull's-eye; target

to fly

to leap

to jump / to leap