vt.

1. 看到，注意到[+（that）][+wh-][O3][O4]
   He observed a stranger hanging around the store.

   他看到一個陌生人在商店附近閒逛。

   I observed him stop at the gate.

   我看到他在門口停下來。

   He pretended not to observe our entry.

   他裝作沒有看見我們進來。

2. 觀察，觀測；監視
   They carefully observed the behavior of deer.

   他們仔細觀察了鹿的生活習性。

3. 遵守，奉行
   This law must be strictly observed.

   這項法律必須嚴格遵守。

4. 說；評述，評論
   He observed that it was a lovely day.

   他說天氣真好。

5. 慶祝（節日等）
   Some people observe Christmas here.

   在這兒有些人過耶誕節。

vi.

1. 注意；觀察
2. 說；評述，評論[（+on/upon）]
   He observed on modern art.

   他談了對現代藝術的看法。

v.

1. notice; perceive.
   ▸watch attentively.
   ▸detect in the course of a scientific study.
2. say; remark:
   ‘It's chilly,’ she observed.
3. fulfil or comply with (an obligation).