From Lego sets to Fire TV Sticks, you’d be surprised at the range of gifts you can get for under $25. I’ve found some awesome ...

“Sawfly（锯蜂）” 是一种与黄蜂相似的昆虫，这种昆虫会切开植物并把自己的卵产在切口处。苏格兰赫瑞-瓦特大学的研究人员一直在研究雌性锯蜂怎么知道如何做出这种独特的切割，从而避免杀死或损伤植物。

'Car boot sale' diamond set to fetch £350,000 at auction 旧货市场淘来的钻石拍卖价可能达35万英镑 Episode 170526 / 26 May 2017 A piece of everyday jewellery has turned out to be a real diamond ...