根据这种观点，双胞胎很可能是一次在怀孕期间用自然保障方式防止流产的意外的副产品。
On this view, twins are probably an accidental by-product of a natural insurance policy against the risk of losing an embryo early in gestation.
用一个专门的经常更新的博客，显示你的产品是充满活力的，(至少每周一次，如果可能应该时常更新)。
Show your product is a living creature by keeping a dedicated blog that you update frequently (at least once a week, more often if you can).
在测试前，要对加工完成的产品用金属探测器进行一次检验以确保产品中不含有任何金属成分。
Allow a case of finished product to pass through the metal detector first, before the test, to ensure it does not contain any metal.
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