Ulcers
n. 溃疡, 疡（ulcer的复数）
🗣️ 情景例句
Not too bad. How about yourself?
还可以。你怎么样？
It is easy to prophesy after the event.
事后诸葛亮，预言顶便当。
At noon the spaces between the sensors will hide fluctuations that the computer will not know about, tiny deviations from the average.
正午时分，传感器之间的距离会掩盖计算机无法知道的波动、任何偏离平均值的变化。