sudden loss of consciousness的用法和樣例：
例句
- Sleep produces a loss of consciousness but not a loss of pain.
睡眠可以產(chǎn)生意識喪失，但不喪失痛覺(jué)。 - Syncope is a brief loss of consciousness with collapse resulting from transient brain dysfunction based on decreased blood flow or neurologic insult.
暈厥是暫時(shí)性意識喪失并跌倒，它是因為血流減少或神經(jīng)損傷而造成一過(guò)性大腦功能失調而引起的。
