動詞 engross:

1. engross (oneself) fully
   同義詞：steep, immerse, engulf, plunge, engross, absorb, soak up
2. engage or engross wholly
   同義詞：absorb, engross, engage, occupy

形容詞 engrossed:

1. giving or marked by complete attention to
   同義詞：captive, absorbed, enwrapped, intent, wrapped
2. written formally in a large clear script, as a deed or other legal document

1. He was so engrossed in his work that he forgot to eat.
   他全神貫注地工作，連吃飯也忘了。
2. Newton was so engrossed in his laboratory work that he often forgot to eat.
   ＂牛頓全神貫注地在實驗室工作，常常連吃飯也忘了。＂
3. She was engrossed in painting.
   她全神貫注于繪畫。