Manganpectolite
锰针钠钙石
🗣️ 情景例句
I find that hard to swallow.
对这一点我难一相信。
If the customer requests a carrier other than truck, he must bear the additional charge.
如果顾客坚持用卡车以外的运输工具，就必须负担额外费用。
Letter
4第四封信