形容詞 tranquil:

1. (of a body of water) free from disturbance by heavy waves
   同義詞：placid, quiet, still, smooth, unruffled
2. not agitated; without losing self-possession
   同義詞：calm, unagitated, serene

1. He looked at the man with a tranquil eye.
   他以平靜的眼神看著那個(gè)男人。
2. A calm or tranquil state of mind; self-possession.
   冷靜，沉著頭腦鎮(zhèn)定或沉著的狀態(tài); 自我克制
3. Both my husband and I love the tranquil life in the country.
   我丈夫和我都喜歡鄉(xiāng)村的寧靜生活。