Natronkalk
烧碱石灰
🗣️ 情景例句
There is no future in my job.
我的工作没有未来。
Never too old (or late) to learn.
学到老，学不了。
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，