溴、氯阳离子化合物的数量受局限.The number of cationic bromine and chlorine compounds is restricted.溴化反应较不易发生.Bromination takes place less readily.溴化烷可以这样形成.Alkyl bromides can be produced this way....
Willa Cather's pioneer novels were very famous among her early writings.威拉·凯瑟的拓荒小说,在她的早期创作中非常著名.From Masculine Individuality to Feminine Environmentalism: An Ecofeminist Interpretation of Willa Cather's O Pione...
He continued to appear in the office with unfailing regularity thereafter.从那以后他照常出现在办公室，风雨无阻。Thereafter she wrote articles for papers and magazines in Paris.此后她给巴黎的报纸和杂志撰稿。Thereafter they did not speak.此后他们就不再讲话了....