Vain attempts to imitate others no longer will I make.这句的语法怎么解释

Vain attempts to imitate others no longer will I make.这句的语法怎么解释 All their attempts to rescue the child from the burning building were__A.in vain B.for C.in return D.in place我选A,正确答案是B.why?All their attempts to rescue the child from the burning building were__ .He dies soon afterwards.A.in vain B.for `MAKE NO ATTEMPTS TO ESCAPE! in vain attempt to do是什么意思啊..in vain effort to do和in the vain hope that 呢... all attempts by the cure to announce什么意思? scientists tried in vain to do these experiments,翻译 He attempted ____ to set up a company of his own.A:with vain B:on vainC:in vain D:of vain希望同时给出翻译, Failed Attempts CMMS、IMI、AC-尼尔森是什么? Vain 是什么意思 翻译:Multiple baptism attempts due to a pesky toe or kneeMultiple baptism attempts due to a pesky toe or kneeP.S:机翻勿回 since then,there have been periodic attempts by Chinese and Taiwanese activists to sail to theisland. I am vain enough to want to be loved for myself rather than my money three attempts to break the deadlock during the first world waressay 0 attempts have been made to reconnect.这是什么问题呢? Your account has been locked due to too many failed login attempts. with their attempts to push thelimits of human achievements（短语） 英语翻译I’ve spent all afternoon trying in vain to put this bookcase together.