Word: 划时代 (huàshídài) Traditional: 劃時代 划时代 dictionary entry huàshídài epoch-marking Full dictionary entry for 划时代 Example sentences using 划时代 2 sentences, showing page 1 of 1. 手机的出现是一件划时代的大事。 Shǒujī de chūxiàn shì yí jiàn huàshídài de dàshì. The appearance of the mobile phone was an epoch-making event. 那位科学家做出了划时代的发现。 Nà wèi kēxuéjiā zuòchūle huàshídài de fāxiàn. That scientist made an epoch-making discovery.