核心词议：
adv. 两倍；两次；两遍
twice 基本解释
adv. 两次；两倍；兼
速记方法
速记技巧 谐音联想法 拆 twi与two同源=二，两；ce谐音次（ce实际上为副词后缀） 记 组合起来就是两次。
知识扩展
常用短语 twice a week每周两次
think twice再三考虑；重新考虑
think twice about something三思而后再决定做某事
think twice about仔细考虑，重加考虑
中文词源
twice 两次，两倍
twi-,二，-ce,副词后缀。
中文词源： twice 两次，两倍 twi-,二，-ce,副词后缀。 twice
精选例句
1、 Americans eat only about fifteen pounds of fish per person per year, but we eat twice as much fish in restaurants as at home.
美国人每年每人只吃大约15磅的鱼，但我们在餐馆吃的鱼是在家里吃的两倍。[机器自动翻译，如有错误，感谢纠错]
2、 Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta.
几个狩猎营地作为这次冒险的基地，提供独特的游乐设施，每天两次深入三角洲探索。[机器自动翻译，如有错误，感谢纠错]
1、 By the end of the next decade both words were used more frequently, and climate change was used nearly twice as often as global warming.
到下一个十年末，这两个词的使用频率都增加了，气候变化的使用频率几乎是全球变暖的两倍。
1、 E) In an online forum post, which asked if it’s true that Louis Vuitton burned its bags, Ahmed Bouchfaa, who claimed to work for Louis Vuitton, responded that the brand holds sales of old stock for staff members twice a year.
在一个网上论坛帖子中，有人问路易威登是否真的烧毁了它的包，自称在路易威登工作的艾哈迈德·布查法回答说，该品牌每年为员工举办两次旧货销售。
1、 Nowadays anyone applying for a research post has to have published twice the number of papers that would have been required for the same post only 10 years ago.
现在，任何申请研究职位的人都必须发表两倍于10年前相同职位所需的论文数量。
常见考点例句：
- Use it once or twice each week .
- 每个星期使用一或两次。
- That is almost twice as many as in 1976 .
- 这个比例几乎是1976年的两倍。
- As these that twice befell .
- 如同已降临的这两次。
- He did so twice last year .
- 在去年他两次投票反对。
- Argentina and poland were afflicted twice .
- 阿根廷和波兰都两次中招。
