Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.为了达到合成的目的,对Diels-Alder加 成物(56)和(62)加以改造的问题很少有人考虑.The meanders of a prattling brook, were shaded with straggling w...
Some movement in the building will occur as It'settles into the subsoil.楼房沉到下层土时,楼里就会有动静.It'd be fun, after the situation in Europe settles down, to take a trip over to France.等欧洲的局势平定下来后，去法国旅行一趟应该不错。'It&#...
布兰森先生的胜利，以及随之而来的关注度，都是理所应当的。Mr Branson's victory, and all the attendant publicity, were well deserved.维珍公司富有冒险精神的创始人理查德∙布兰森Virgin's buccaneering founder, Richard Branson也许我们应该效法布兰森。我们都不难看出他是怎样成为亿万富翁的。Maybe we s...