密切監視某人或某物。
例句：
- The teacher watched the pupils like a hawk to make sure they did not cheat on the exam. (老師密切監視學生以確定他們考試不會作弊)
- We had to watch our dog like a hawk in case he ran away. (我們必須密切監視我們的狗以防牠跑掉)
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