Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl bu...
Unemployment benefit is paid fortnightly in arrears.失业救济金延后两个星期支付。Meetings take place at fortnightly intervals.每两周开一次会。They are now holding their fortnightly meetings at The New Invention Victory Club.他们现在正在新发明胜利俱乐部开两周一次...
His Excellency entreats you by me.总督大人要我恳请你.She falls down on her knees, and entreats him to restore her to the mountains.她双膝下跪, 哀求他放她回到故乡山里去.He entreats a bowstring to be fastened on the arm, must not fasten on the neck...