一只金刚鹦鹉站在栖木上冲他尖叫。A macaw screeched at him from its perch.鸟停歇在栖木上.The bird took its perch.其它保护措施是可在种子园中到处设置木制的栖木.Other protection can be obtained by providing wooden perches througout the orchards....
那位舞蹈演员戴着粉色鸵鸟毛制作的头饰.The dancer wore a headdress of pink ostrich plumes.她戴了一顶漂亮的冕状头饰，而新郎也毫不逊色，身着一件非常讲究的刺绣西服马甲。She wore a lovely tiara but the groom, not to be outdone, had on a very smart embroidered waistcoat.冠, 饰以珠宝, 分开的...
Antioxidant tertiary butyl hydroquinone was prepared by hydroquinone and tertiary butyl alcohol.由对苯二酚与叔丁醇反应制得抗氧化剂叔丁基对苯二酚.They were good catalyst for synthesis of n - butyl cinnamate.它们是催化合成肉桂酸正丁酯的良好催化剂.A method of synthe...