1 عمومی:: بطن هر چیزی، (inside=) داخل و یا توی چیزی
شبکه مترجمین ایران
1 general:: Within, in less than the whole of, referring especially to a period of time. For example, They promised to return it inside of a month. Although some authorities believe inside alone conveys the same meaning, the full term is widely used. [Early 1800s]
American Heritage Idioms