或者数据值低于超低限 extended low range
超低的利率减轻了许多有房者的压力。
Ultra-low interest rates have eased the pressure on many homeowners.
低迷的房价再加上超低的房贷利率并不能重振房地产市场，尤其当购房者税收抵免优惠于四月到期以后。
As it is, already-low home prices coupled with low rates haven't done much to revive housing, especially following the expiration in April of the home buyer's tax credit.
每位参与者每天要消耗500-550卡路里，8周时间里他们每天只吃一种叫Optifast（超低卡路里）外加新鲜蔬菜搭配的食物。
They took in 500 to 550 calories a day, using a meal replacement called Optifast plus vegetables for eight weeks.
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