小于给定数的素数个数是该数的一个函数。

Foreign powers do not seem to appreciate the true character of our Government.

I don't know anyone who needs a strap-on more than me.

For me they normally happen, these career crises, often, actually, on a Sunday evening, just as the sun is starting to set, and the gap between my hopes for myself and the reality of my life starts to diverge so painfully that I normally end up weeping into a pillow.

水产养殖实践的透明度能建立消费者信任并推动长期成功。

在我看来，自然界是最大的兴奋来源；最大的视觉美来源；最大的智力兴趣来源。它是生命中许多让生活有价值的东西的最大来源。

我们讲给自己的故事和别人讲我们的故事同样重要。