比如内啡肽，仍然向我们提供着一种幸福感和安全感。

Endorphins, for example, are still providing a sense of well-being and security.

youdao

比如内啡肽，仍然向我们提供着一种幸福感和安全感。

Endorphins, for example, are still providing a sense of well-being and security.

youdao