tunnel breakthrough ceremony meaning in English

隧道贯通典礼

Light at the end of the nam wan tunnel could finally be seen after excavation for the tunnel breakthrough today february 25 , when a tunnel breakthrough ceremony jointly officiated by the permanent secretary for works , mr lo yiu - ching ; and the director of highways , mr mak chai - kwong was held to commemorate the milestone achieved by the route 8 project
环境运输及工务局常任秘书长工务卢耀桢路政署署长麦光今日二月二十五日主持隧道的贯通典礼，标志八号干线工程项目一个重要的里程碑，进一步迈向完成该项一百五十亿元的主要工程。