克鲁格金币南非共和国发行的一盎司金币 A one-ounce gold coin of the Republic of South Africa.
金银重量单位任一种欧洲的重量单位，相当于8盎司（227克），尤指用于衡量金银 Any of several European units of weight that were equal to about8 ounces(227 grams), used especially for weighing gold and silver.
一盎司糖可以供给多少卡热量？ How many calories can an ounce of sugar supply?
