awhile VS. a while
As a noun phrase after a preposition such as after, for, in, within, one should use two words, a while. In that case, it means ‘a short or moderate time’. If one is using the term adverbially, it should be spelled as one word, awhile, which means ‘for a short time’. Examples of each are: I will stay for a while at the party. He napped for a while. / She stayed awhile at the party. I napped awhile on the couch. This topic is a fine point of grammar and for many uses only writing it will distinguish which syntactic structure one should use
معرفی کتاب تاچ استون
روش استفاده شده برای آموزش لغات انگلیسی در کتاب تاچ استون، مبتنی بر تکنیکها و روشهای مدرن تدریس در جهان بوده و کلمات انگلیسی را در قالب جمله و با توجه به نحوه استفاده از آنها در مکالمات آموزش میدهد.