性行为 (xìngxíngwéi): sexual behavior

Meanings

Xuéxiào yīnggāi kāizhǎn xìngxíngwéi jiàoyù.

Schools should provide sexual behavior education.

Bù ānquán de xìngxíngwéi kěnéng dǎozhì jíbìng.

Unsafe sexual behavior can lead to disease.

register

性行为 is a formal/medical term. It's used in educational, legal, and medical contexts rather than casual conversation.

性 xìng

行 xíng

为 wèi