spy
🇺🇸
/spaɪ/
🇬🇧
/spaɪ/
a person who secretly collects information about others
The spy gathered secret information about the enemy country.
间谍收集了关于敌国的秘密信息。
to secretly collect information about others
He learned to spy for his government during the war.
他在战争期间学会了为政府从事间谍活动。
to suddenly see or notice something
We spied a small boat in the distance while on watch.
我们在值班时突然发现远处有一艘小船。