盐薄饼干和饼干不新鲜了就会变软儿不是变硬。因为它们吸收了周围空气里的水分。
This also explains why saltines and cookies get soft when they go stale instead of hard–because they're absorbing water from the air around them.
盐薄饼干和饼干不新鲜了就会变软儿不是变硬。因为它们吸收了周围空气里的水分。
This also explains why saltines and cookies get soft when they go stale instead of hard–because they're absorbing water from the air around them.
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