旋转木马的英文：
carrousel
merry-go-round
whirligig

参考例句：

But that roundabout has stopped.
但是，旋转木马已经停止。

Children riding the merry-go-round.
骑着旋转木马的孩子们。

Ride a merry-go-round
骑旋转木马

Riding on a carousel makes you feel dizzy.
乘旋转木马使你头晕。

I want to try the merry-go-round.
我要坐旋转木马。

I'd give anything to have a go on that merry-go-round.
我很想坐坐那个旋转木马。

The kid was happy when he saw the whirligig going round.
那小孩看到不停转动的旋转木马非常高兴。

carrousel是什么意思：
n. 旋转木马,(尤指机场的）旋转式行李传送带.
merry是什么意思：
adj. 快乐的，愉快的，嬉戏作乐的

A merry heart has a continual feast.
一颗愉快的心会享受到接连不断的节日。

Merry is he that has nought to lose
人无所失,不亦乐乎

It is good to be merry at meal
席间心情愉快是为上策

round是什么意思：
adj. 圆形的；整数的
adv. 周围；在周围；调转方向；绕弯；到某地
prep. 环绕；围绕
n. 阶段；轮次；圆形物体；【音】轮唱曲
v. 绕行；绕过；（使）成圆形；变圆

There is a round circuit.
这有一个环型赛车场。

The water wheel goes round and round.
水车转个不停。

When you squeeze the trigger, a round or rounds of ammunition are fired.
当你紧按板机，一发或几发子弹就射出了。