1 detail既可作名词,也可作动词,通常在军事用语中两者都有使用,但是在日常用语中,名词用的比较广泛；
2 in detail这里detail用的是单数,go into detail(s)这里单复数都可以,但是一般多是用单数形式,习惯用复数形式的是go into personal details；
3 in more detail比more in detail 用法普遍,同理in less detail比less in detail用法更为常见.
elaborate的英文解释是：add details,as to an account or idea; clarify the meaning of and discourse in a learned way,usually in writing
比datail更为详尽,含义更进一步.
