difficult to perceive or describe

难以捉摸的  detail>>

difficult to perceive subtle

难于察觉的  detail>>

quality that is difficult to describe

难以描述的特性  detail>>

perceive

 vt.  1.察觉，发觉。 2.看见，听见。 3.领会，领悟，了解；看出，抓住(意义、真相等)。  短语和例子 &nb...  detail>>

describe

 vt.  1.记述，叙述，描写，形容；评述。 2.制(图)，画(图形)，作图。 3.(行星等)周转，运行。  短语和例子&nbs...  detail>>

describe as

描述为  detail>>

describe to

向某人描述  detail>>

be difficult of

难于, 不易  detail>>

be difficult to

很难去……  detail>>

difficult

 adj.  1.困难的，(工作等)艰难的。 2.执拗的，顽固的。  短语和例子   a difficult ...  detail>>

it’s not difficult

不难  detail>>

that’s difficult

那很困难  detail>>

perceive a change in attitude

觉察到态度有变化  detail>>

when we perceive

意识到  detail>>

describe environment

描述环境  detail>>

describe the scenery

写景  detail>>

describe you

说你  detail>>

express; describe

抒写  detail>>