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Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.為了達到合成的目的,對Diels-Alder加 成物(56)和(62)加以改造的問題很少有人考慮.The meanders of a prattling brook, were shaded with straggling w...
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n.榿木...
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The microorganisms involved in symbiosis with the alder tree are actinomycetes of the genus Frankia.而與赤楊共生的微生物是放線菌.Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.它的名字是本·亞爾德, 是一座盡是些山崗和雞谷的...
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alder的復數形式為：alders...
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alder的音標：alder的英式發音音標為：['?:ld?(r)]alder的美式發音音標為：['?ld?]...