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会员注册今日单词：
| 单词 | 中文释义 | 英文释义 | 例句 |
| overnight | 1. 突然，一下子（形容词） 2. 一夜间的（形容词） |
1. (adjective) In a short time period (usually between a few weeks and a few months) 2. (adjective) In the period between sunset of one day and dawn of the next |
EXAMPLE: The exciting novel was an overnight success and soon more than a million copies were sold. 这部令人兴奋的小说一下子取得了成功，很快便售出了 100 万册。 EXAMPLE: Since the project plans were needed as soon as possible, we sent them to our colleagues by overnight delivery. |
今日短语：
| 短语 | 中文释义 | 英文释义 | 例句 |
| to head on out | 出发（远行）（非正式用语） | (INFORMAL) To depart on an expedition or excursion | EXAMPLE: When we are visiting a new city we often like to head on out quite early in the morning to explore it. 我们到一座新城市的时候，通常喜欢一大早就出发去探索。 |