The saddest thing in the world is a little baby nobody wants.世上最让人难受的莫过于小婴儿遭到遗弃。That was the saddest thing I ever saw with them, the old man thought.它们这情景是我看到的最伤心的了, 老人想.It was one of the saddest days in world history wh...
他哀伤地说道：“我爱我的祖国，但祖国并不爱我。”He said woefully: "I love my country, but it does not give a damn about me."玛姬哀伤地看著其他孩子在玩耍.Maggie sadly watched the other children playing.请哀伤地吟唱.Please intonate with sadness....
This paper presents a novel production process of alumina by using isooctanol.研究了利用异辛醇和金属铝制备高纯氧化铝的工艺.The water increases the activity of the catalyst, and the isooctanol improves of the catalyst greatly.微量水分的存在对催化剂的活性有很大...