I need a cask of wine and some apples.我需要一桶酒和一些苹果.The cask savours of the first fill.酒桶长留初次装酒的香气.Mites are a tiny parasitic insect, the cask has some defensive effect.螨虫是一种微小的寄生小虫, 木桶也有一定的防御效果." A cask of Amontillado! " ...
In there compounds, the cyclopentadiene ring has only four hydrogens.在这些化合物里, 环戊二烯环只有4个氢.The cyclopentadiene is prepared by the thermal cracking of dicyclopentadiene.以热裂解双环戊二烯的方法制备环戊二烯.The chemistry of cyclopentadiene or...
我有了头痛的先兆。I had the beginnings of a headache.乌云是下雨的明显先兆.Black clouds are an unmistakable sign of coming rain.那被认为是一种不幸的先兆.It is said to be an omen of misfortune....