家中闲置的物品，二手转换，求购或转让信息。
Idle at home articles, second-hand conversion, buy or transfer information.
他们在线购买二手实验室设备，把网络摄像头转换成10美元的显微镜和在他们的腋下培养遗传改良的Escherichia coli 。
They buy used lab equipment online, convert webcams into US$10 microscopes and incubate tubes of genetically engineered Escherichia coli in their armpits.
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