preparatory
/prɪˈpærətərɪ/adjective
1- serving as or carrying out preparation for a task or undertaking预备性的, 准备性的：
more preparatory work is needed.
还需要做更多的准备工作。
1.1
- Brit.relating to education in a preparatory school〈英〉预备的, 预科的：
preparatory schooling.
预备教育。
短语
preparatory to
- as a preparation for为…作准备的：
she applied her make-up preparatory to leaving.
她化了妆, 准备出门。
词源
late Middle English: from late Latin praeparatorius, from praeparat- 'made ready beforehand'， from the verb praeparare （see PREPARE）.