当必须自定义软件开发时，我们通常外购以降低我们的生产和交付的成本。
When we have to do custom software development, we usually outsource it to lower our production and delivery costs.
范龙佩说，如果比利时可以降低其债务，那么希腊也能。
If Belgium could lower its debt, Mr Van Rompuy says, so can Greece.
到下雨时，一台普通的压缩机就足以降低湿气。
When it rains, a traditional compressor kicks in to cut moisture.
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