劳动可以使我们摆脱三大灾祸：寂寞恶习贫困。

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

The body is the first tool of the artist.

质量不是保证；它是一种证明。

乳制品行业必须在环境管理方面发挥领导作用。