Alkylferrocene
烷基二茂(络)铁
🗣️ 情景例句
That's a practicable course of action.
那是一个切合实际的行动方案。
I felt it advisable to do nothing.
我认为最好什么也别做。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。