Concavation
凹度
🗣️ 情景例句
It was a pleasure having you. Please come again.
和你在一起我们非常荣幸，请有空常来。
In that case, we might need to reopen the question of prices.
如果是那样，我们也许需要重新讨论价格。
OK, Mom! said Lucy.
“好的，妈妈！”露西说。