rat·able /ˈretəbəl/
 (a.)可估價的,可評價的,比例的
 Rat·a·ble a.
 1. Capable of being rated, or set at a certain value.
    Twenty orae were ratable to [at] two marks of silver.   --Camden.
 2. Liable to, or subjected by law to, taxation; as, ratable estate.
 3. Made at a proportionate rate; as, ratable payments. -- Rat*a*ble*ness, n. -- Rat*a*bly, adv.
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 ratable
      adj : liable to payment of rates or taxes; "the ratable value of
            property" [syn: rateable]