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