baby act meaning in Chinese

幼稚行为 (plead the baby act 〔美国〕以幼稚无经验为口实)。

A pair of stage twins, who turned out to be the girls in yellow, did a baby act in costume .
一对双胞胎原来就是那两个黄衣姑娘演了一出化装的娃娃戏。
Battling for the baby acted by real persons
父子武状元又名：给爸爸的一封信
Play the baby act
作出幼稚的举动
A pair of stage twins , who turned out to be the girls in yellow , did a baby act in costume
一对双胞胎? ?原来就是那两个黄衣姑娘? ?演了一出化装的娃娃戏。