Unflatness
不平直度
🗣️ 情景例句
It's funny. History repeats itself.
真有意思。历史在重演。
The machines will be made of the best materials and the stipulations of the contract be strictly observed.
机器将用最好的材料生产，合同的规定也将得以严格履行。
Dear May,
亲爱的梅，