| 31. | The sanctions prevent Iraq from exporting its economic mainstay, oil.
 
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 | 32. | The sanctions bar Iraq from selling oil, its economic mainstay.
 
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 | 33. | Tourism is the mainstay of the Cyprus economy . ae-tso
 
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 | 34. | Chemotherapy is obviously going to be a mainstay of the treatment.
 
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 | 35. | Assistance from Turkey is the mainstay of the Turkish Cypriot economy.
 
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 | 36. | Logging and farming were mainstays of Minnesota's early economy.
 
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 | 37. | Weinberg became a mainstay of Springsteen's long concert performances.
 
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 | 38. | Another mainstay is The College of Southern Idaho ( CSI ).
 
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 | 39. | Saloons were a mainstay in the town throughout the 19th century.
 
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 | 40. | The newspaper became a mainstay of American expatriate culture in Europe.
 
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