in reserve 1. 被留出备用；被留待后用 have some money in reserve 留有一些钱备用 I kept some tranquillizers in reserve in case I became agitated. 我备了一些镇静药，以供激动时服用。 The controversial plan is now held in reserve for the future. 这项有争议的计划现已搁置，留待日后再议。 2. (在印染、陶器着色等中因经防染处理而)以本色，以原色