Ccna
abbr. 思科认证网络支持工程师（Certified Cisco Network Associate）
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
What time did you get to work yesterday morning?
你昨天早上什么时间上班？
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。