Unflatness
不平直度
🗣️ 情景例句
I don't see what you are getting at.
我不明白你究竟是什么意思。
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
I get to school at about 7:30 every day.
我每天七点半到校。