这个专业主要学习通信技术。

Zhège zhuānyè zhǔyào xuéxí tōngxìn jìshù.

This major mainly studies communication technology.

现在的通信越来越方便了。

Xiànzài de tōngxìn yuèláiyuè fāngbiàn le.

Communication nowadays is getting more and more convenient.

为了保证通信安全，我们需要设置密码。

Wèile bǎozhèng tōngxìn ānquán, wǒmen xūyào shèzhì mìmǎ.

To ensure communication security, we need to set a password.