如果没有供应限制，你还能售出多少部iPhone手机。
How many more iPhones could you have sold if you didn't have supply constraints?
在这个年代初期，供应限制曾在一定程度上意味着大宗商品牛市。
Supply constraints were part of the bullish argument for commodities earlier this decade.
为应对这些限制，粮食进口国正试图敲定长期贸易协议，以锁定未来粮食供应。
In response to those restrictions, grain-importing countries are trying to nail down long-term trade agreements that would lock up future grain supplies.
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