Tricyclopentadienide
三环戊二烯化物
🗣️ 情景例句
I know it hurts.
我知道那儿痛。
What is the style of furture?
这是什么样式的家具？
Aunt Harriet lived in that leisurely age when servants were employed to do housework.
哈丽特生活在一个悠闲的年代，家务事都由雇来的佣人代劳。