帮我解释一下此句的结构.Such a specific training is of less interesting
1个回答

这样的记忆训练还不如保持头脑清醒.

less interesting than being able to maintain mental alterness 这是个比较级

be of 是个词组 这里可以理解为具有---性,

Such a specific training is of less interesting (此处可以理解为省略了thing)than being able to maintain mental alterness be of + (great, much, some, no, little) +抽象名词(value, importance, use, help, bravery, difference, patience, courage, ability等),of表示“具有”,“具备”等意思;of不能省,这一结构相当于“be+该抽象名词相对应的形容词(形容词前用very, not作修饰语)