双语例句
I had been sitting in geometry class for two hours, waiting for the professor to conclude his lecture about concentric circles and concaved figures.
我已经上了两个小时的几何课，一直等着教授结束这个关于同心圆和凹面图的讲座。
词典释义：
concaved
时间: 2025-02-05 20:04:34
英 ['kɒnkeɪvd]
美 [kɑn'kevd]
v. 使…凹陷：（concave的过去式和过去分词）