你不忍心看到你曾經(jīng)精力充沛的（有活力的）母親由于中風(fēng)使她幾乎殘廢而過著痛苦、受限的生活!
you是主語,cannot bear 是謂語,
see your once vigorous mother living the painful,limited life to which the stroke has condemned her全部是賓語
your once vigorous mother living the painful,limited life to which the stroke has condemned her是see的賓語
once vigorous 是修飾mother,在這里作定語
which the stroke has condemned her.在這里補(bǔ)充說明“母親過著痛苦、受限的生活”是由于中風(fēng)所造成的
condemned原意是“譴責(zé),報(bào)廢的”在此處譯為“使…殘廢”較好（中風(fēng)使她幾乎殘廢）