alternate

中文： 交替的、轮流的、间隔的

1. Happening by turns; one following the other in succession of time or place; first one and then the other (repeatedly).
2. Alternating; (of e.g. a pair of tinctures which a charge is coloured) succeeding in turns, or (relative to the field) counterchanged.
3. Designating the members in a series, which regularly intervene between the members of another series, as the odd or even numbers of the numerals; every other; every second. · the alternate members 1, 3, 5, 7, etc.
4. Other; alternative. (US) · Hyperlinked text is displayed in alternate color in a Web browser.· He lives in an alternate universe and an alternate reality.
5. Distributed singly at different heights of the stem, and at equal intervals as respects angular divergence · Many trees have alternate leaf arrangement (e.g. birch, oak and mulberry).