Childishness
成人 Adult Edu童心；稚气；童稚；孩子气
✅ 同义词
📖 牛津释义
childishness
n [U].
🗣️ 情景例句
I really have to go.
我真的得走了。
Man will conquer nature.
人定胜天。
It is the one world in the Solar System that is most like the Earth.
火星是太阳系里与地球最接近的一颗行星。