Ncec
[医][=National Clearinghouse on Environmental Carcinogenesis]全国环境致癌作用情报交流所
🗣️ 情景例句
Yes?
是吗？
Could you please explain the premises of your argument in more detail?
你能详细说明你们的论据吗？
Why don't you attend an aerobic class?
你为什么不去参加一个有氧健身班呢？