beam balance [机] 梁式天平
- Look there. A girl is on the balance beam.
看那边,一个女孩正在表演平衡木哩。 - The gymnast poised herself on the balance beam.
体操运动员在平衡木上保持平衡。 - She performed on the balance beam with much grace.
她在平衡木上表演得非常优美。
beam balance[ noun ]
a balance consisting of a lever with two equal arms and a pan suspended from each arm
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