Unflatness
不平直度
🗣️ 情景例句
Just relax.
不用紧张。
That's amazing! I t sure looks expensive.
真想不到！看上去肯定以为很贵。
From then on, Harry decided that this little game he had invented might prove to be expensive.
从那以后，他认识到自己发明的小小恶作剧是要付出很大的代价的。