spy

vi 暗中监视

• Two soldiers were sent to spy on the enemy. 两名士兵被派去暗中监视敌人的行动。

• He found out that a man was spying on him from a car. 他发现有一个人从车里窥视他的行动。

vt 暗中监视…的行动

• The police were spying that suspect. 警方在暗中监视那个嫌疑犯。

词组spy out

1. 侦察出；查明

• spy out the land 察看地形

2. 主文 看见，发现

• I spied him out as he got out of the car. 他下车时我就发现了他。