The British weren’t alone in their hunt. Chileans, New Zealanders, and South Africans, among others, were also scrambling to source this strategic substance. A few months after the Pearl Harbor attack, the U.S. War Production Board restricted American civilian use of agar in jellies, desserts, and laxatives so that the military could source a larger supply; it considered agar a “critical war material” alongside copper, nickel, and rubber.1 Only Nazi Germany could rest easy, relying on stocks from its ally Japan, where agar seaweed grew in abundance, shipped through the Indian Ocean by submarine.2
那沟陡峭得厉害，目测斜角起码超过50度。这里没有山路，只有长久以来放羊人踩出来的窄径，仅可容一个人侧身通过，坑多，土松，脚一踩，土疙瘩刷刷往下掉。人稍没站稳，就跌沟里去。
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