retching
用法要点
句型搭配
通常用作不可数名词，描述干呕的动作或状态，常见于描述症状或反应的句子中。
介词用法
常与介词'from'连用表示原因，如'from nausea'；也可与'with'搭配表示伴随状态，如'with retching'。
语域说明
主要用于医学、健康或日常描述身体不适的语境，属于中性到正式用语，在口语中也可使用但较具体。
基础例句
After eating that spoiled food, I had retching for hours.
吃了那个变质的食物后，我干呕了好几个小时。
She felt retching when she smelled the strong chemical odor.
闻到强烈的化学气味时，她感到一阵干呕。
The motion sickness caused him retching during the car ride.
晕车让他在乘车途中一直干呕。
I woke up with retching and had to lie down to feel better.
我醒来时干呕不止，不得不躺下才感觉好些。
高级例句
In clinical studies, retching is often monitored as a side effect of chemotherapy.
在临床研究中，干呕常被监测为化疗的副作用。
The patient presented with persistent retching, requiring further diagnostic evaluation.
患者出现持续性干呕，需要进一步的诊断评估。
Workplace safety protocols address retching risks from exposure to toxic fumes.
职场安全规程涉及接触有毒烟雾导致的干呕风险。
Research indicates that retching can be a precursor to vomiting in gastrointestinal disorders.
研究表明，在胃肠道疾病中，干呕可能是呕吐的前兆。
高频搭配
verb
adjective
noun
adverb
preposition
phrase
常见错误
错误：'retching'本身已表示干呕动作，无需加'to vomit'，否则冗余。正确用法直接使用'retching'描述状态。
错误：'retching'通常作不可数名词，不应加复数's'。正确用法用形容词如'frequent'修饰，或说'episodes of retching'。
近义词辨析
vomiting
vomiting指实际吐出胃内容物，而retching仅指干呕动作，可能不伴随呕吐。
The patient had retching but no vomiting, indicating a different underlying cause.
nausea
nausea是恶心的感觉，可能引发retching，但retching是具体的身体动作，nausea更侧重主观不适。
She felt nausea all morning, which later led to retching after lunch.