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重点讲解：
1. spruce up
装扮；打扮；
eg. Many buildings have been spruced up.
很多大楼都被装扮一新。
eg. In the evening we spruced ourselves up a bit and went out for dinner.
到了晚上，我们稍微收拾打扮了一番，然后出去吃晚餐。
eg. They were all spruced up for the party.
他们都打扮得漂漂亮亮的去参加聚会。
2. a dash of
少量，些许；
eg. A dash of cold water will revive a person who has fainted.
泼洒冷水可使昏厥的人复苏。
eg. A vegetable stew can be perked up with a dash of chilli sauce.
给炖菜加点辣椒酱能使味道更佳。
eg. His conduct has a dash of impudence in it.
他的行为有点冒失。
n. 行为，举动，品行
v. 引导，指挥，管理
