A pained expression came over his face

他的脸上出现了痛苦的表情

She had a pained expression on her face.

她脸上带者痛苦的表情。

He's looking at me with a pained expression on his face.

他看着我，脸上挂着痛苦的表情。

Hopkins, squinting out at the sunny water, wore a pained expression.

霍普金斯眼睛斜视着阳光普照的海面，一副愁眉苦脸的样子。