“笑容满面”常见的英文表达有 “be all smiles” 或 “be smiling from ear to ear”，以下为你详细介绍：
含义：字面意思是“全是笑容”，形容人满脸笑容，心情非常愉快。
例句：
When she saw her boyfriend at the airport, she was all smiles.（当她在机场看到男朋友时，笑容满面。）
The children were all smiles as they received their presents.（孩子们收到礼物时，个个笑容满面。）
含义：直译为“从耳朵笑到耳朵”，也就是笑得合不拢嘴，形象地表达出一个人非常开心、笑容满面的状态。
例句：
He was smiling from ear to ear when he heard the good news.（听到这个好消息时，他笑得合不拢嘴。）
The bride was smiling from ear to ear on her wedding day.（新娘在婚礼当天笑得合不拢嘴。）