I like to keep going. I hate to sit still.我喜欢一直有事情做，讨厌一动不动地坐着。Things were difficult, and we needed her wages to keep going.日子很艰难，我们要靠她的工资来维持生活。I was shouting: "Keep going, keep going!"我喊着：“坚持，坚持！”...
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...
He meditated for two days before giving his answer.他在作出答复之前考虑了两天.She meditated for 2 days before giving her answer.她考虑了两天才答复.He meditated resentfully on the physical texture of life.他满心忿忿不平,左思右想着生活的物质方面....