놀람, 짜증, 후회 또는 무시를 나타낼 때 사용하는 감탄사.
An exclamation used to express a variety of emotions such as surprise, frustration, regret, or dismissal.
예문:
"Ach, I've gone and forgotten my umbrella on the bus again."
"Ach, it's not as bad as it looks, so stop worrying."
"Ach, well, we can always try again tomorrow."
중추 및 말초 신경계에서 중요한 역할을 하는 신경전달물질인 아세틸콜린의 약어.
A common abbreviation for acetylcholine, a neurotransmitter that plays a key role in the central and peripheral nervous systems.
예문:
"The release of ACh at the neuromuscular junction is essential for muscle contraction."
"Certain toxins work by inhibiting the breakdown of ACh in the synaptic cleft."