Desoxidizer
[冶]脱氧剂
🗣️ 情景例句
He was very kind.
对人和蔼。
I'm worried about the appearance of the floor.
我担心地板的外观。
I'm not sure. It was difficult to see. Wei Hua and Sun Meiying were both neck and neck.
我不敢肯定。很难说。魏华和孙美英不分上下。