Isotachyte
等规聚合物, 全同立构聚合物
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
Bitter pills may have wholesome effect.
良药苦口利于病。
Last week No.14 Middle School held a sports meeting on the playground.
上星期第十四中学在操场举行了一次运动会。