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1·Cocoa is the country's economic mainstay.

可可是这个国家的经济支柱。《牛津词典》

2·A country lacking short-term liquidity would be loth to approach the IMF for a loan under the stand-by arrangement, the mainstay of the IMF's crisis lending.

一个缺乏短期流动性的国家可能不愿向国际货币基金组织寻求“备用信贷协议”——IMF 危机贷款的中流砥柱。

3·Trade was the mainstay of the urban economy in the Middle East, as caravans negotiated the surrounding desert, restricted only by access to water and by mountain ranges.

因为商队只能通过水路和山脉进入沙漠，贸易就成为了中东城市的主要经济支柱。

4·This principle of collective bargaining has been a mainstay in labour relations in this country.

这种集体谈判原则已成为该国劳动关系的一个重要基础。《柯林斯英汉双解大词典》

5·Agriculture is a mainstay of the economy.

农业是经济的支柱。

6·What about tourism, Greece's mainstay?

那希腊的顶梁柱——旅游业呢？

7·These remain the mainstay of professional GIS.

这些保持了专业GIS的核心技术。

8·The other mainstay is the Central Provident Fund.

另一重点就是中央公积金。

9·In fact, it is the mainstay of many Agile development methods.

事实上，这是许多敏捷开发方法的支柱。

10·Farming, a mainstay of the economy, is also being liberalised.

农业这一经济的支柱也被自由化了。