Spy upon sb
暗中监视某人, 侦查某人
🧩 词语组成解析
upon
[ə'pɑn]
prep. 在…上面;当…时候;
[计] 栈底, 标准二进制, 减, 备用设备\\n[医] 锑(51号元素)
🗣️ 情景例句
What'll the weather be like tomorrow?
明天的天气怎么样？
In time of peace prepare for war.
居安思危。
I hope we can make a decision today. I believe prices might go up next week.
我希望今天就决定下来。我相信下周价格会上涨。