Example sentences of "[adv] [verb] back up [art] [noun sg] " in BNC.
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| 1 | Then I slipped over and did a leisurely backstroke back up the pool . |
| 2 | In this case the high-frequency waves pass through the medium , are reflected off the specimen and then bounce back up the sapphire rod to the transducer , which converts the returning sound into an electrical signal . |
| 3 | The light travels down an open tube until it hits a curved mirror at the bottom ; the rays are then sent back up the tube on to a smaller , flat mirror placed at an angle of 45 degrees , so that the rays are directed into the side of the tube , where an image is formed and magnified by an eyepiece . |
| 4 | Once she was safely winched back up the slipway into the lifeboat shed , I spoke to some of the crew . |
| 5 | Without another word he too went back up the bank and vanished into the wood . |