Chalcocitization
辉铜矿化(作用)
🗣️ 情景例句
Really?
真的？
As requested, we now hold this offer open for a further 5 days since 24th April.
按你方要求，我方报价有效期延长5日，从4月24日起。
Excuse me for ringing you so late in the evening, but I've only just got home.
对不起，这么晚给你打电话，我刚到家。