coma

中文意思

• n. 昏迷
• n. 彗发, 彗差

英文释义

• n. a state of deep and often prolonged unconsciousness; usually the result of disease or injury
• n. (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)
• n. (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed

词形变化

复数

comas

例句

1. n. 昏迷

   The doctor said the patient might remain in a coma for several weeks after the serious accident.

   医生说，在这场严重事故之后，病人可能会处于昏迷状态好几个星期。

2. n. 彗发, 彗差

   Astronomers used a powerful telescope to observe the bright coma surrounding the comet's nucleus.

   天文学家利用一台高倍望远镜观察了围绕彗核的明亮彗发。