Titanit
蒂坦钛钨硬质合金(碳化钛+碳化钨, 少量碳化钼, 用钴作粘结剂)
🗣️ 情景例句
or Mom is at a committee meeting.
就是妈妈参加小组会议。
I'm glad you helped me.
我很高兴你能帮我的忙。
It was this that betrayed me.
正是这副模样泄露了我的秘密。