她告诉我们她是某苏格兰勋爵的后裔。She told us she was descended from some Scottish Lord.这个头衔将只能传给男性后裔。This title will only pass down through the male line.他属于奥康纳家族，是爱尔兰最后一位君王的嫡系后裔。He was an O'Conor and a direct descendant of the las...
Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.One advisable way is to synthesize NFM acylating morpholine...
...Iran's clerical leadership.伊朗的教会领袖She had a clerical assistant to do her paperwork.她让助手帮她做文书工作.The hospital blamed the mix-up on a clerical error.医院方面将这一混乱归咎于一处笔误。...a strike by clerical staff in all government d...