2. Call Dad twice.

3. Lao Wang next door comes quickly.

Wi-Fi, also known as "mobile hotspot" in Chinese, is the trademark of the manufacturer of the Wi-Fi alliance as a product brand certification, and it is a wireless LAN technology created in the IEEE802. 1 1 standard. Based on the close relationship between the two systems, Wi-Fi is often regarded as synonymous with IEEE802. 1 1 standard.