前途无量

to have boundless prospects

front / forward / ahead / first / top (followed by a number) / future / ago / before / BC (e.g. 前293年) / former / formerly

prospects / future outlook / journey

way / route / road

not to have / no / none / not / to lack / un- / -less

measureless / immeasurable

to measure

capacity / quantity / amount / to estimate / abbr. for 量詞|量词[liang4 ci2], classifier (in Chinese grammar) / measure word