Phthalofyne
[化] 酞己炔酯; 酞酸甲戊炔酯
🗣️ 情景例句
What for?
为什么？
Old oxen have stiff horns.
牛老角硬。
Because it's winter now. The weather here is very cold in winter, isn't it?
因为现在是冬天。这儿的冬天天气非常冷，对吗？