Multinitriding
多次氮化
🗣️ 情景例句
She is indifferent to other people's suffering.
她对别人的痛苦漠不关心。
In secondary school, children get more advanced knowledge.
中学的小孩会得到进一步的知识。
'Would you mind unlocking this suitcase please?'
“请打开这只手提箱好吗？”