Be careful, I think the neighbors have been spying on us.
小心点,我觉得我们邻居一直在窥视我们。
How many passengers were on the train?
在火车上有多少旅客?
Knowing that the industrious ant lives in a highly organized society does nothing to prevent us from being filled with revulsion when we find hordes of them crawling over a carefully prepared picnic lunch.