舟舟的食儿
使结晶Cold rain crystallized into snow.雨水在低温情况下结晶变成雪。计划成型, 具体化After weeks of work, our plan for a vacation trip crystallized.经过几周的工作, 我们的度假计划终于成型了。
joanna0727
1,Books are the crystals of human's wisdom. crystal 晶体或者2,Books are crystallizations of human's wisdom.或者3,Books are quintessence of human's/humanbeing's knowledge.quintessence [kwinˈtesəns]n.典范, 完美典型精华, 精髓