Word: 阶段 (jiēduàn) Traditional: 階段 阶段 dictionary entry jiēduàn stage; section; phase; period Full dictionary entry for 阶段 Example sentences using 阶段 2 sentences, showing page 1 of 1. 工程的第一阶段已经完成了。 Gōngchéng de dìyī jiēduàn yǐjīng wánchéngle. The first phase of construction has been completed. 空间科学还在起步阶段。 Kōngjiān kēxué hái zài qǐbù jiēduàn. Space science is still in its infancy.