take a purgative
She took a purgative to relieve her constipation.
她服用了泻药来缓解便秘。
促使排便的物质或药物;泻药;泻剂
a substance, especially a medicine, that causes the bowels to empty; laxative
促使排便的物质或药物;泻药
something, such as a substance or medicine, that purges; laxative
The old remedy was a strong purgative made from senna leaves.
这种古老的治疗方法是用番泻叶制成的强效泻药。
用法提示:purgative 作名词,在句中作表语,意为‘泻药’。
He took a purgative before the medical examination to clear his bowels.
他在体检前服用了泻药来清空肠道。
用法提示:purgative 作名词,作 took 的宾语。
Many ancient physicians used purgatives to remove what they believed were harmful substances.
许多古代医生使用泻药来清除他们认为有害的物质。
用法提示:purgatives 为复数形式,作 used 的宾语。
She took a purgative to relieve her constipation.
她服用了泻药来缓解便秘。
Doctors often use this plant as a purgative.
医生们常把这种植物用作泻药。
Senna is a natural purgative for constipation.
番泻叶是治疗便秘的天然泻药。
最日常、最通用;语气中性,可指温和或较强的泻药,而 purgative 偏医学或正式,通常指药力较强的泻药。
强调作用迅速猛烈,比 purgative 程度更强;作名词时较正式,常见于医学或文学语境。
作“泻药”讲时较古旧、少用;现在更常表示“清除、清洗”或“政治整肃”,需靠语境辨别。
grammar · medium
易错句子The doctor purgative the patient before the surgery.
正确表达The doctor purged the patient before the surgery.
purgative 是名词,意为“泻药”,不能用作动词;表示“给……服泻药/使排便”应用动词 purge。
grammar · medium
易错句子I ate a purgative to relieve my constipation.
正确表达I took a purgative to relieve my constipation.
汉语“吃药”常直译为 eat,但英语中服药的习惯搭配动词是 take,所以应说 take a purgative。
grammar · medium
易错句子I have constipation and need purgative.
正确表达I have constipation and need a purgative.
purgative 是可数名词,单数形式前需要不定冠词 a/an;汉语没有冠词,学习者容易漏掉。
对应名词义“泻药(促使排便的物质或药物)”,指减轻或止住腹泻、减少排便的药物,与 purgative 作用方向相反,不能互换。
purgative 指作用较强的泻药,多用于彻底清空肠道;laxative 泛指促进排便的药物,作用较弱,日常更常用。
purgative 是名词“泻药”,而 purge 作名词或动词表示清除、清洗或政治整肃,虽同源但意思完全不同。
服用泻药
The doctor told him to take a purgative to clear his bowels.
医生让他服用泻药来清肠。
强效泻药
Senna is known as a strong purgative.
番泻叶被认为是一种强效泻药。
温和的泻药
Prunes are often used as a mild purgative.
西梅干常被用作温和的泻药。
天然泻药
This herbal tea works as a natural purgative.
这种草药茶能起到天然泻药的作用。
草药泻药
This herbal purgative is sold in health food stores.
这种草药泻药在健康食品店有售。
-ative
-ative
-ative
-ative
-ative
-ative
purg-(词根:清洁,清除) + -ative(后缀:具有…作用的;此处指药剂)
purg-(词根:清洁,清除)
ex-(前缀:向外,除去) + purg-(词根:清洁,清除) + -ate(动词后缀)
purgative 用于缓解便秘症状。
purgative 的作用部位主要在肠道。
purgative 促使粪便排出。
purgative 需按剂量服用。
这类药物有时需要医生开具处方。
Dictionary facts from ECDICT, WIKTIONARY.