科学家们正在研究彗星周围模糊的彗发结构。
Scientists are studying the fuzzy ___coma around the comet.
医生说她可能会在昏迷中停留数月。
The doctor said she might stay in a ___coma for several months.
医生说她的昏迷状态可能会持续数月。
The doctor said she might remain in a ___coma for several months.