So we say an ounce of prevention is worth a pound of cure.

VOA: special.2009.08.30

Now if you're not in a kitchen it's going to be hard to measure a cup, or an ounce, or things like that so you'll have to be estimating.

如果你不在厨房,很难用杯,盎司,或其他单位来度量,因此需要自己来估计

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An ounce of prevention is sometimes worth a ton of cure.

有时候一盎司的预防,比得上一吨的治疗。

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As Reason's Jacob Sullum points out, that means that while New Yorkers will no longer be able to ingest 240 calories drinking a 20-ounce Coke, they will still have no trouble buying a 24-ounce, 520-calorie double-chocolatey frappucino at Starbucks, or a 20-ounce, 800-calorie milkshake.

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In order to have a corresponding ounce-to-ounce spread trade in the futures market, a trader who is looking for the spread to narrow would buy two 50-ounce platinum futures contracts and simultaneously sell one 100-ounce gold futures contract.

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"The equivalent of a half ounce, which is about a third of a candy bar, or a couple of Hershey Kisses will do it, " Waterhouse said.

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