「我完全負擔不起出國。我昨天查了一趟國內旅遊,每人2億里亞爾(152美元),我們一家四口光是機票就8億(609美元)。2017 年,去歐洲整趟行程也才2億。」
6Koch borrowed the idea of using gelatine from mycologist Oscar Brefeld, who had used it to grow fungi. Interestingly, Brefeld also employed carrageenan, another seaweed-derived jelly. Because fungi generally favor growing at ambient temperatures, Brefeld might have been less plagued by the melting of growth media than Koch.
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