foundation stone
noun [ C ] uk/faʊnˈdeɪ.ʃən ˌstəʊn/ us/faʊnˈdeɪ.ʃən ˌstoʊn/
奠基石
a large block of stone that is put in position at the start of work on a public building, often with a ceremony
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。