Eccc
[医][=element concentration calibration curve]元素浓度校正曲线
🗣️ 情景例句
I take this threat very seriously.
我认为这种威胁非同小可。
Are you sure?
你确信吗？
I said that together we could light a fire that could be seen for many miles.
我说，我们一起点燃一堆火，让几英里远都能看见。