Stumbling block
大学 College
障碍物, 绊脚石
🧩 词语组成解析
n. 块;街区;<英>大楼,大厦;障碍物,阻碍;
vt. 阻止;阻塞;限制;
🗣️ 情景例句
OK. Let's talk.
好, 我们谈谈吧。
I know the boy whose father is an engineer.
我知道那个男孩的父亲是工程师。
Five days ago, the policeman told him, the bicycle was picked up in a small village four hundred miles away.
那位警察对他说,那辆自行车是5天前在400英里外的一个小村里发现的,
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