The pitfall is the trappings of success can catch you off guard.陷阱就是,成功的表象来袭时,你可能猝不及防.Economy the poor man's mints; extravagance the rich man's pitfall.节约是穷人的造币厂, 浪费是富人的陷阱.The wolf was caught in a pitfall.那只狼是利...
Iso - amyl acetate was synthesized with ammonium ceric sulfate as catalyst neutralized acetic acid and iso - amyl alcohol.以硫酸铈铵为催化剂,乙酸和异 戊 醇为原料,合成乙酸异戊酯.N - amyl aldehyde is a main raw material in the synthesis of methyl ...