Flatness
n. 平坦, 平滑\\n[化] 平直度; 平整度; 平面度
?? 牛津釋義
flatness
n [U].
??? 情景例句
Eating salad is good for your health.
多吃色拉（蔬菜）對你的健康有益。
I've had enough. I can't eat any more.
我已經飽了，再也吃不下了。
Slowly, she said, We were all here before you. You must wait for your turn. Do you understand?
“我們這兒個個都排在你前面。你得等輪到你才行。你懂嗎？”