Dioxydiphenyl
二羟基联苯
🗣️ 情景例句
Keep right unless overtaking.
要靠右驾驶，除非超车。
He has not come in yet.
他还没有来。
Wu dropped his stick! He stopped to get it and of course fell behind.
吴的接力棒掉地了！他停下捡棒，当然就落后了。