微笑的英语是smile，作名词或动词。

smile发音：英 [smaɪl] 美 [smaɪl]

例句：

She was gazing at him with a soft, contented smile on her face.

翻译为：她注视着他，脸上带着温柔而满足的微笑。

His face relaxes into a contented smile.

翻译为：他面部肌肉放松下来，露出了满意的微笑。

固定搭配：

smile at 对……微笑;一笑置之

make someone smile使某人微笑

flash a smile 露出笑容