None of these solutions is exactly costless.
这些解决办法并非完全不需要花钱。
The Cheap Nike shoes costless fast suit is severely an extraordinary sneaker.
快速的西装是免费的耐克运动鞋严重不寻常的。
The strategies make use of simple messages that can generate significant returns with changes that are virtually costless.
这类策略利用的都是简单的信息，能够产生相当可观的收益，而达成这种改变的成本几乎可以忽略不计。
The strategies make use of simple messages that can generate significant returns with changes that are virtually costless.
这类策略利用的都是简单的信息，能够产生相当可观的收益，而达成这种改变的成本几乎可以忽略不计。
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