1.众所周知，钻石是最坚硬的物质。

　　It is well-know that diamonds are the hardest substance.

　　2.今天的大部分钻石不是从河床中发现的，而是从深藏在地下的岩石组织中开采出来的。

　　Today, most diamonds are not found in stream beds, however are mined from rock formations deep inside the earth.

　　3.钻石刚开采时并不光彩照人。

　　Diamonds do not look every impressive as they are mined.

　　4.他干任何事都没有常性。

　　He has no persistence in doing anything.

　　5.活火山爆发是一种可怕的自然现象。

　　The eruption of an active volcano is a terrible phenomenon.

　　6.请把你要得东西清理出来并把其余的全扔掉。

　　Please sort out what you want and throw away the rest.

　　7.这部电梯的价钱比预计的要稍高一些。

　　The price of the elevator is somewhat higher than they have expected.

　　8.这些图案十分受青年人欢迎。

　　These designs are very popular with young people.

　　9.他不写了，因为他的笔没有墨水了。

　　He stopped writing because his pen had run out of ink.

　　10.有经验的人能立即辨别出那个是真的。

　　Experience people can tell which on is real immediately.