| 短语 | on solid ground |
| 释义 | on solid ground confident because you are dealing with a subject you are sure about, or because you are in a safe situation有十分的把握，完全放心:•To make sure that he was on solid ground, he confirmed his findings with others.为了确保有十分的把握，他把自己的研究结果跟其他人作了核实。 |
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