Checkpointer
[计] 检查点, 校验点
🗣️ 情景例句
Well, I care about the children of our town.
噢， 我关心我们镇上的孩子们。
Are you free tomorrow?
你明天有空吗？
How are you getting on with your English lessons?
你的英语课学得怎么样了？