Luna 16 landed on the lunar surface (in total darkness, no less), collected moon rocks, packed them up, and returned them to Earth.
“月球16号”降落在月球表面(完全是在黑暗中)，收集了月球岩石，打包，然后带回地球。
The room was in total darkness.
房间里一片漆黑。
At that instant the museum was plunged into total darkness.
在那一刻，博物馆陷入一片黑暗。
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