beyond/within the realms of possibility idiom UK (US beyond/within the realm of possibility)
不／可能的
impossible/possible
It's not beyond the realm of possibility that some schools may have to cut sport altogether. 有些学校可能不得不完全砍掉体育课，这并非完全不可能。
"Do you think he could step down?" "I think it's within the realms of possibility, yes."