曾经的珍珠奶茶，如今升级为红糖现熬；曾经的牛肉面，如今强调鲜切牛肉、现熬原汤；曾经川渝火锅很火，如今鲜牛肉火锅成为热点。
Agar is so critical that since WWII, scientists have tried to find alternatives in the event of a supply chain breakdown, especially as recent shortages have caused similar alarm. But while other colloid jellies have emerged, agar remains integral to laboratory protocols because no alternatives can yet compete on performance, cost, and ease of use.
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