詹姆斯抱怨作业太多时，老师批评了他，让他不要像小孩似的不成熟。

The teacher told James not to be such a big baby when he complained about having too much homework.

youdao

她重读这些音节，像教小孩似的。

She stresses the syllables as though teaching a child.

《柯林斯英汉双解大词典》

她把茶叶丢回去，连匙带茶叶，一起收起来，使性地又坐在椅子上。她的前额蹙起，红红的下嘴唇撅起，像一个小孩要哭似的。

She flung the tea back, spoon and all, and resumed her chair in a pet; her forehead corrugated, and her red under lip pushed out, like a child's ready to cry.

youdao