Ccna
abbr. 思科认证网络支持工程师（Certified Cisco Network Associate）
🗣️ 情景例句
That was a big dinner, and I'm stuffed.
晚餐真丰盛啊！我吃多了！
It is so necessary for you to have some rest and relaxation.
你特别需要休息和娱乐。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。