Sideroplesite
镁菱铁矿
🗣️ 情景例句
What line of work are you in?
你做哪一行的？
A change of work is as good as a rest.
调换一下工作是很好的休息。
So great is our passion for doing things for ourselves, that we are becoming increasingly less dependent on specialized labour.
现在我们自己动手做事的热情很高，结果对于专业工人的依赖越来越少了。