2022年8月18日
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摘要： attempt [from ad- 'to' + temptare 'to touch, try'] tangent [from tangere 'to touch'] straight line that touches the outside of a curve but does not cr 阅读全文
posted @ 2022-08-18 13:21 华容道专家 阅读(277) 评论(0) 推荐(0)