?桥隧改造
... 桥隧大修 major repair of bridge and tunnel 桥隧改造 upgrading of bridge and tunnel 桥隧经常保养 regular maintenance of bridge and tunnel ...
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。