Dipyrrole
α, α'-联吡咯
🗣️ 情景例句
Then there'll be other houses, Marilyn.
还会有别的房子， Marilyn。
Heaven helps those who help themselves.
天助自助者。
As long as all was still, the pen drew a straight line,
只要一切都是静止的，笔就会划出一条直线；