rock-a-bye
verb [ I or T ] (also rock-a-by, rockabye) uk/ˈrɒk.əˌbaɪ/ us/ˈrɑːk.əˌbaɪ/
摇哄婴儿睡觉
to rock a baby (= to move it backwards and forwards or from side to side in a regular way) to help it to sleep
The Czech word for a lullaby is derived from the verb kolébat, meaning to rock-a-bye. 捷克语中“摇篮曲”这个词来源于动词kolébat，意思是“摇啊摇，哄婴儿睡觉”。
a well-known lullaby called "Rockabye Baby" 一首叫《摇啊摇，小宝宝》的著名摇篮曲
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- They sang a children's song called "Rock-a-bye your teddy bear".
- "Rock-a-bye, baby, on the tree top," she sang softly.
rock-a-bye
adjective [ before noun ] (also rock-a-by, rockabye) uk/ˈrɒk.əˌbaɪ/ us/ˈrɑːk.əˌbaɪ/
以摇哄婴儿睡觉的样子
used to describe the action of rocking a baby to sleep, or something that relates to this
He was holding a big plank of wood in his arms rock-a-bye style. 他怀里抱着一大块木板，像在哄婴儿睡觉一样。
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- I put the baby in his rock-a-by seat.
- She put out her elbows and swung them in a rockabye motion.