Aerocasing
氰化钙液体氰化法, 钙盐氰化
🗣️ 情景例句
How you doing?
你怎么样了？
In secondary school, children get more advanced knowledge.
中学的小孩会得到进一步的知识。
Which speech are you going to listen to this afternoon?
今天下午你准备去听哪个报告？