名词
中文翻译：摇动的针
同义词：
['rocker', 'rocking toy']
例句：
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1.The child was playing with her rocking pin when she fell asleep.
孩子在玩摇杆时睡着了。
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2.The old man sat in his rocking chair, lost in thought.
老人坐在摇椅上，陷入了沉思。
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3.She rocked the baby to sleep with a lullaby.
她用摇篮曲哄婴儿入睡。