balance beam

名词 balance beam:

1. a gymnastic apparatus used by women gymnasts
   同义词：beam

1. The gymnast poised herself on the balance beam.
   体操运动员在平衡木上保持平衡。
2. She performed on the balance beam with much grace.
   她在平衡木上表演得非常优美。
3. The girl lost her balance and fell off the balance beam.
   小女孩失去了平衡，从平衡木上摔了下来。