20-03-23 When it comes to physical health, mountains of evidence will tell you that a healthy diet is important. 谈到身体健康时，大量证据会告诉你健康饮食很重要。 And it is. 而且确实是这样的。 But a growing body of research is showing that diet is important f...

20-03-19 Dolphins are marine mammals closely related to whales and porpoises. The name is originally from Greek (delphus), meaning womb. The animals name can therefore be interpreted as meaning a fish with a womb. Along with whales and porpoises, dolphins ar...

20-03-18 很多人都分不清tortoise和turtle。 Many people are confused by the words tortoise and turtle. This is partly due to regional differences. In British English, turtles and tortoises are two different hard-shelled, egg-laying reptiles. The main difference...

20-03-18 关于一年的定义是一个星球围绕太阳旋转一周需要的时间。而一天是这个星球自转一周所需要的时间。 The scientific definition of a year is the amount of time it takes for a planet to make one revolution around the Sun. Earths neighbouring planet, Venus, takes...

20-03-18 鲸鱼油除了被当做太平洋西北部土著人的主要食物之外还有很多其他用途，你知道吗？ Whale oil, also referred to as train oil, is oil produced from whales. It was a major food of the aboriginal peoples of the Pacific northwest, such as the Nootka but it was...

20-03-17 鲸鱼是哺乳动物，因此在很多方面它们和人类很像。最重要的区别是鲸鱼和人类的生活环境不同。那么鲸鱼睡觉吗？鲸鱼是如何睡觉的的呢？ Whales are mammals, so in many ways, they are just like human beings. The most important difference is that humans and whale...

20-03-12 鲸鱼不是鱼，而是整个一生都生活在水里的哺乳动物。 Whale is the common name for various marine mammals of the order Cetacea. Whales breathe air and are not fish. They are mammals that spend their entire lives in the water. Whales are of two types: too...

20-03-09 狮子是现在仅存的群居的野生猫科动物。 Lions are the only social wild cats. They live in family groups called prides, which are made up of as many as 12 females and their young, and up to three adult males. Most lions are found in Africa, but small po...

20-02-08 你知道死海严格意义上说是湖不是海吗？死海位于亚洲西部巴勒斯坦、约旦、以色列之间,它的名字上虽然有一个海字,但它并不是海,而是一个湖泊。 Did you know that the Dead Sea is technically a lake? A lake is a body of water that is surrounded by land. The Dead...

20-02-08 一项追踪研究43代老鼠的试验表明，比起那些原本相对安静的老鼠的后代，那些原本相对活跃的老鼠的后代跑轮子的所花时间要比它们长两倍。 An experiment tracking mice for 43 generations finds that progeny of those that initially were more active are spending th...