【例】Sound travels through the medium of air. 声音通过空气这一媒介传播
Commercial television is an effective medium for advertising. 商业电视是有效的广告宣传工具.
My gloves are size medium. 我的手套尺寸是中号。
【扩展】media
240. media n. 媒体,资讯媒介,传播媒介
【搭配】 the Mass media 大众传媒
【例】The media have a lot of power today. 现在大众传播媒介有很大的力量。
The latest developments have just been released to the media. 最新的进展情况已向大众传播媒介发表。
【扩展】medium
241. auxiliary n. 帮助者,辅助物,助动词a. 附加的,辅助的
【搭配】auxiliary verb 助动词
【例】We have an auxiliary generator in case of power cuts. 我们有一台万一断电时使用的备用发电机。
She is an auxiliary nurse. 她是一名助理护士。
【扩展】auxilian n. 辅助人员
242. automatic n. 自动的机器a. 自动的,无意识的
【搭配】an automatic door 自动门 an automatic dishwasher 自动洗碗机
【例】Many workers in the sorting office lost their jobs when an automatic sorter was introduced. 拣信室安装了自动拣信机之後, 许多拣信员都失业了.
Many of our movements are automatic. 我们人体的许多动作都是无意识的。
【扩展】automatize vt.使自动化
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