評(píng)論
打印
1.Wind causes the mast to oscillate, or move back and forth.
back and forth 來來往往地；(前后)來回(地)；來來往往地；交互地；反復(fù)地；翻來覆去地
She passed the needle through the rough cloth, back and forth.
她一針一針地縫那塊粗布。
The prosecution and defense were bandying accusations back and forth.
原告和被告你來我往，互相指責(zé)。
2.It does not spin around. So it creates no risk to birds and bats.
spin around 轉(zhuǎn)圈圈；轉(zhuǎn)身；原地旋轉(zhuǎn)；原地打轉(zhuǎn)
The boat started to spin around in the water.
船開始在水中打旋。
The propeller started to spin around.
螺旋槳開始飛快地旋轉(zhuǎn)起來。
