单词：cyclization of paraffins
[建] 烷烃的环化
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The next morning after breakfast, everyone rushed over to check the Chore List that Mr. Morgan posted on the pantry door. Weve got kitchen duty, Jessie said to Benny. Sarah and Ive got something called . . . mulching, Violet said. Henry and I will be
发表于:2018-12-06 / 阅读(66) / 评论(0)
34 The Mystery Horse
34 The Mystery Horse
The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松（松树）制成, 在液体的石蜡
发表于:2018-12-18 / 阅读(38) / 评论(0)
英国学生科学读本
英国学生科学读本
It was a half-holiday and William was in his bedroom making careful preparations for meeting his fellow outlaws, as they called themselves, in the afternoon. He and the other outlaws would always meet up during half-holidays, to go on adventures and
发表于:2019-01-16 / 阅读(42) / 评论(0)
英语PK台
英语PK台