observe/əb'zɜːv $ -'zɜːrv/

v.

➊ watch sb/sth carefully

➋ see or notice sb/sth

v. [T]

➊ 观察，监视，观测：The teacher has observed the child's behaviour for several months. 老师观察这个孩子的行为有好几个月了。

◇[observe wh-] Observe how I operate the machine. 注意看我是如何操作机器的。

➋ 看到；注意到：[observe sb doing (或do) sth] I observed a man running towards her. 我注意到有个男子朝她跑去。

构词ob- + serve (=keep保持）

同根 observe; preserve; reserve

常犯错误

✗ We observed a large block of birds to head north.

✓ We observed a large block of birds heading north. 我们看到一大群鸟朝北飞去。