娃娃脸的

例句：

1. 1. She always has a childish smile on her face.
   她总是面带孩子般的笑容。
2. 2. The little girl had a baby-face, making her look much younger than her age.
   这个小女孩有着婴儿般的脸，让她看起来比实际年龄小很多。
3. 3. He was always trying to hide his childish behavior behind a serious expression.
   他总是试图用严肃的表情掩盖他的幼稚行为。