insomnia
/ɪnˈsɒmniə/
名词
B2
中文：
失眠
-
A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.
(countable, uncountable)
· My mother suffers from insomnia.
-
Temporary inability to sleep.
(countable, informal, uncountable)
复数 insomnias