Sintropac
加铜铁粉; 铁铜混合粉末
🗣️ 情景例句
If you don't give me a better price, I won't buy this.
如果价格不更优惠些，我是不会买的。
The Red Cross supervised the distribution of food and clothing to the flood victims.
红十字会坚督分配食物和衣物给水灾受害者。
She was a lively young woman with patience and imagination.
她是一个活泼的女子，具有耐心和想象力。