Chu admits that research does not guarantee success, yet he maintains that on the basis of the present situation, he is very optimistic about the future.
雖然做研究多少冒點風險，不能保證一定成功；但由他們目前的進度及表現看來，已投資下去的一切都相當值得，遠景亦充滿樂觀的預期。