preparatory

🇬🇧/prɪˈpærət(ə)ri/ 🇺🇸/prɪˈpærətɔːri/📚 13468 32 1
Preparatory actions are done before doing something else as a form of preparation or as an introduction. 准备性的

adjective [原级]预备性的,准备性的;<英>预备的,预料的

At least a year's preparatory work will be necessary before building can start.
在建造开始之前至少需要一年的准备工作。

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