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
I'll see you then.
到时候见啦。
Nature is the glass reflecting truth.
大自然是反应真理的一面镜子。
Look into the river, said the monkey. There he is! See his head?
“往河里看，”猴子说，“他就在那里！看见他的头了吗？