Prevail upon
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🧩 词语组成解析
upon
[ə'pɑn]
prep. 在…上面;当…时候;
🗣️ 情景例句
When will you be through with your homework?
你的家庭作业什么时候可以做完？
What do you mean? not at all!
哪有？
Mr. Fang is in London. He's looking for different places. He needs some help.
方先生在伦敦。他在寻找一些地方，他需要帮助。