/spaɪ ||; spaɪ/verb (
present participle spying third person singular present spies;past tense past participle spied)
1 [I] to try to get secret information about sb/sth 刺探机密情报；暗中监视某人 ☞Look at espionage. 参看espionage。
2 [T] (formal 正式) to see 看见；发现
spy on sb/sth to watch sb/sth secretly 暗中监视:
The man next door is spying on us. 隔壁那个男人在监视我们。