Diphenylethylene
1, 2-二苯乙烯
🗣️ 情景例句
Fortunately, I found his house at once.
很幸运地，我立刻找到他家。
Whe angry, count ten before you speak; if very angry, a hundred.
怒时数十再说话，大怒数百方开言。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难，因为常常是早晨在甲地发现那只美洲狮，晚上却在20英里外的乙地发现它的踪迹。