按一下开关，窗玻璃便落下来。
比如，玻璃驾驶舱的界面只有“阿波罗”号十分之一的开关。
The glass cockpit interface, for instance, will have one tenth as many switches as Apollo.
莫斯科地铁站的玻璃门异常厚实笨重，开关时摆动幅度相当大。
The doors of the Metro stations in Moscow are lethal-thick, heavy glass with a wicked swing.
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