بهروز

involving students with different levels of ability دانش آموزان با سطوح متفاوت

if sth is all - expenses - paid, it means that you don't have to pay for anything yourself هزینه تقبل شده ( رایگان )

if a rule, system is in place, it has started to exist موجود ( وجود داشتن )

midtown=the part of a city near the center نزدیک به مرکز شهر

tie sth up= To cause sth, not to be available for use syn= To occupy تصرف کردن، مورد استعمال قرار دادن، اشغال کردن، در دسترس نبودن