At the end of the tunnel is a wall of brightly colored moving video images.

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You hook one end of the spring to a wall and you pull it from rest by some amount and you attach the one kilogram mass to it.

你把弹簧的一端固定在墙上,然后拉伸一段距离,接着你把 1 千克物体固定在上面

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But you can nail it to the wall and pull one end.

你可以将它钉在墙上,拉着它的一端

耶鲁公开课 - 基础物理课程节选

David Wright then stole second, but David DeJesus hauled in Lucas Duda's fly ball to deep left-center at the wall to end the inning.

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Or the pilot and the CFI were busy sightseeing and suddenly realized they were hitting the end wall tunnel.

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And by many accounts, these living dinosaurs are indeed about to hit a brick wall at the end of their 250-million-year run.

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