Mangelinvar
钴铁镍锰合金
🗣️ 情景例句
But the only time he's available this week
但这星期他有空的时间只有
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
Shortly afterwards, the police stopped the car and both men were arrested.
没过多久，警察就截住了那辆车，两个小偷都被抓住了。