balance beam
US /ˈbæl.əns biːm/
UK /ˈbæl.əns biːm/
1.
平衡木
a long, narrow piece of wood or other material, typically 10 cm wide, on which gymnasts perform balancing exercises
:
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The gymnast performed a flawless routine on the balance beam.
體操運動員在平衡木上完成了一套完美的動作。
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She practiced for hours on the balance beam to perfect her moves.
她在平衡木上練習了數小時，以完善她的動作。