https://indify.co/widgets/live/clock/vjmypEfkZ3ECmYh7da5l
<aside> 💡 一元一次不等式(一)
https://www.youtube.com/watch?v=xHPZpvN6sX8&list=PLCvil-WTvodgZq1XBZPhynuyhEJSaoi5u&index=2
一元一次不等式(二)
https://www.youtube.com/watch?v=aSmeshsLrYo&list=PLCvil-WTvodgZq1XBZPhynuyhEJSaoi5u&index=5
</aside>
https://www.youtube.com/watch?v=WxrCICm9NtY
<aside> 💡 平行線與截角性質
https://www.youtube.com/watch?v=rVJidnz6Fts&list=PLCvil-WTvodg804l82YHJdrFubFjJ1Gis&index=3
平行線的應用
https://www.youtube.com/watch?v=yNNcjpaP8XQ&list=PLCvil-WTvodg804l82YHJdrFubFjJ1Gis&index=6
</aside>