Actinoid
a. 放射线状的\\n[化] 锕系元素; 锕系
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
The restaurant is in the basement.
那餐厅在地下室。
It is almost always due to some very special circumstances that traces of land animals survive,
几乎总是由于某些特殊的条件，陆地动物的遗体才被存下来，