Mesolithic
n. 中石器时代(旧石器时代与新石器时代之间的时代)
🗣️ 情景例句
Come in, come in. Please, come in.
请进， 请进。请进来。
Let me see. Are dimes and quarters OK?
让我瞧瞧。1角和2角5分的硬币行吗？
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。