Dark matter is a form of stuff that does not interact with light, so cannot be seen, but makes its presence felt by exerting a gravitational pull on normal matter.
暗物质是一种不与光发生作用的物质，因而不可见。但是暗物质又是确实存在的，它与可见物质之间产生的引力效应证实了这一点。
Daft lifts plenty of heavy weight in the film's final moments and does so with an effortless smile helping the film dig its way out of the dark and into the light.
导演在影片最后缓和了沉重的氛围，用一抹会心的微笑在黑暗中掘出一条通往光亮的道路。
The New York Police Department puts an endless list of tasks on the shoulders of its so-called white shirts — the commanders atop an army of lesser-ranking officers in dark blue.
纽约市警察队伍编制中，穿深蓝制服的警察属于受命阶级，穿白色制服的属于发号施令阶级。 这些所谓的白衫警肩负着一系列重任。
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