Reference checkpoint
[计] 参考检验点
🧩 词语组成解析
checkpoint
['tʃekpɔint;'tʃekˌpɔint]
n. 检查站，车站的行李房;
🗣️ 情景例句
When he came to the States five years ago, he had only forty dollars in his pocket.
五年前他来美国时，口袋里只有40美元。
Have you bought any cake?
你买蛋糕吗？
No. It has nothing to do with it at all.
没有。它和我的研究一点关系都没有。