这些累退税政策对低收入家庭造成了更重的负担。

These ___regressive tax policies place a heavier burden on low-income families.

燃油税被认为是累退税，因为它对低收入家庭的影响更大。

Fuel taxes are seen as ___regressive because they disproportionately affect low-income families.

考试压力下，她出现了咬手指这种退行性行为。

Under exam stress, she showed ___regressive behaviors like nail-biting.