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Bulletin board: a place in a computer system where any user can write or read messages 公告牌;布告栏
Substitute: a person or thing that you use or have instead of the one you normally use or have 代替者;代替物;代用品 ~ (for sb/sth)
a meat/milk substitute 代肉╱代乳品
Paul's father only saw him as a substitute for his dead brother. 保罗的父亲只是把他当作他死去的哥哥来看待。
a substitute family 收养家庭
The course teaches you the theory but there's no substitute for practical experience. 这门课教的是理论，但没有任何东西能代替实践经验。
The local bus service was a poor substitute for their car. 他们坐当地的公交车，这比坐自己的汽车可差远了。
Superb: excellent; of very good quality 极佳的；卓越的；质量极高的 adjective
a superb player/meal/goal 一名杰出的运动员；一顿丰盛的饭；一个精彩的入球
The car's in superb condition. 这辆车车况极好。
His performance was absolutely superb. 他的表演精彩绝伦。
You look superb. 你看上去棒极了。
Wicked: very good 极好的；很棒的 slang
This song's wicked. 这支歌太棒了。
Dazzling:令人眼花缭乱的,令人陶醉的
a dazzling display of oriental dance and music 使人陶醉的东方音乐舞蹈表演
keynote: the central idea of a book, a speech, etc. （书、演说等的）要旨,主题,基调
Choice is the keynote of the new education policy. 新教育政策的主导原则是容许选择。
a keynote speech/speaker(= a very important one, introducing a meeting or its subject) 主题发言；主要发言人
innovation
1.the introduction of new things, ideas or ways of doing something （新事物、思想或方法的）创造；创新；改革 uncountable ~ (in sth)
an age of technological innovation 技术革新的时代
1. 2.a new idea, way of doing something, etc. that has been introduced or discovered 新思想；新方法countable ~ (in sth)
recent innovations in steel-making technology 新近的炼钢技术革新
flashy: of things 物品 attracting attention by being bright, expensive, large, etc. 俗艳的;（因昂贵、巨大等）显眼的
a flashy hotel 奢华的旅馆
I just want a good reliable car, nothing flashy. 我只要一辆性能可靠的轿车,不要华而不实.
Poetic: like or suggesting poetry, especially because it is imaginative and shows deep feeling 像诗一般的;富有诗意的 There is a poetic quality to her playing. 她的演奏富有诗意。
Tranquil: quiet and peaceful 安静的;平静的;安宁的
a tranquil scene/place 安谧的景象╱地方
the tranquil waters of the lake 平静无波的湖水
She leads a tranquil life in the country. 她过着恬静的乡村生活.
Vibrate: to move or make something move from side to side very quickly and with small movements （使）振动,颤动,摆动
Every time a train went past the walls vibrated. 每当火车驶过,这些墙都会震动.
The atmosphere seemed to vibrate with tension. 气氛似乎紧张得发颤.
