Retained object
n. 保留宾语（指保留在被动语态句子中的宾语）
🧩 词语组成解析
v. 保持( retain的过去式和过去分词 ); 拦住; 保存; 止住
🗣️ 情景例句
I don't know what you are driving at.
我不知道你到底想说什么。
My native language is Chinese.
我的母语是汉语。
The settlers built railways across the plains and began to hunt even more bison.
殖民者在平原上修起了铁路，于是开始猎取更多的野牛。