Question

in memorizing a number you might try to associate it with fa

Answer 1

基本上不错的,in memorizing a number 构成整个句子的状语,in memorizing 是表示目的,相当于in order to remember,“为了记住”,“要记住” to associate这个动词不定式就是因为try这个动词,后面要跟这样的结构,然后有些词比如remember就是可以跟不定式、可以跟动名词做宾语成分的,但是意义不一样,remember to do 就是记住要做某事,remember doing sth就是记得做过某事 numbers or events 做了with的宾语,前面加上familiar修饰（做定语）