Ncec
[医][=National Clearinghouse on Environmental Carcinogenesis]全国环境致癌作用情报交流所
🗣️ 情景例句
We haven't heard from him for weeks but we're still hoping for a letter.
我们已经有几个星期没有他的消息，但仍然盼望着他的来信。
It's no sin to sell dear, but a sin to give ill measure.
高价卖不为过，短斤少两才有罪。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止，公众已经向新闻界写信表达他们对学生们的感激之情了。