preliminary noun

ADJ. essential, necessary, useful | usual After the usual preliminaries the meeting began.

PREP. as a ~ The two presidents met today, as a preliminary to resuming the peace talks. | without preliminaries She began speaking intensely, without preliminaries. | ~ to an essential preliminary to serious research

You can also check other dicts: preliminary (English, 中文解释 ), wordnet sense, Collins Definition

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