Ecas
abbr. ECFA Committee for Accelerator Studies 非洲未来加速器委员会加速器研究委员会; Energy Conversion Alternatives Study 能量转换替代方案研究; European Council of African Studies 欧洲非洲问题研究委员会
🗣️ 情景例句
Nice to meet you.
幸会。
I haven't heard from him for a long time.
我很久没有收到他的信了。
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。