You can also engage in selling other gardening products and supplies such as compost, earthworms, herb boxes, beneficial bugs, or drip irrigation systems.

您也可以从事销售，或滴灌系统的其它园艺产品和用品，如堆肥，蚯蚓，草本盒，有益的错误。

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But a study conducted by the University of California found that too much washing can actually be bad for you, because it strips away beneficial bugs that help ward off infections.

但是加利福尼亚大学做的一项研究发现，事实上洗澡太频繁也许不利于你，因为会洗掉有益于避免感染的细菌。

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This hints that healthy bacterial populations living in the gut may not just exclude disease-causing bugs; by pumping out beneficial compounds, they may actively help to suppress disease.

这意味着肠胃中健康的菌群分布不仅可以排斥导致疾病的细菌，而且能够通过释放有益菌，积极的抑制疾病。

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Over time, the babies' immune systems start to distinguish between friend and foe in the microbial world, and launch attacks on potentially harmful bugs while leaving beneficial ones, like those that live in the gut, alone.

CNN: Connection between dirty diapers, childhood health