名词
中文翻译：预算的
同义词：
['premature', 'preparatory']
例句：
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1.The math teacher was very good at precalculating the answers for us.
数学老师非常擅长为我们提前计算答案。
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2. She had to precalculate all the expenses before leaving for vacation.
她必须在出发度假前提前计算所有费用。
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3. The engineer used a precalculator to design the bridge.
工程师使用一台预先计算器来设计这座桥。