spy

n. 間諜、偵探、偵察

vt. 偵察、找出、發現

vi. 做密探、偵查

學術名詞

• 間諜衛星：航空太空
• 偵察衛星：航空太空

英文釋義

1. (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors
2. a secret watcher; someone who secretly watches other people
3. catch sight of
4. watch, observe, or inquire secretly