1
a parasite on [noun]
常用介词 on 表示寄生对象。
Lice are parasites on the human scalp.
虱子是人体头皮上的寄生物。
寄生虫；寄生生物
先理解核心含义，再看它在真实句子里的用法。
寄生虫；寄生生物
An organism that lives on or inside a different host species and gets nourishment from it, often at the host's expense.
Lice are parasites on the human scalp.
虱子是人体头皮上的寄生物。
一种生物,寄居在另一种不同物种生物的体外或体内,从中获益,但不足以补偿对宿主造成的损耗。
An organism that lives on or in another organism of a different species, deriving benefit from living on or in that other organism, while not contributing towards that other organism sufficiently to cover the cost to that other organism.
生活在寄主体内或体表,从寄主获取营养而不使寄主受益或死亡的动物或植物
an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host
由母机携带升空并空中发射以支持母机主要任务的飞机组件；寄生飞机。
A component of a composite aircraft which is carried aloft and air-launched by a larger carrier aircraft or mother ship to support the primary mission of the carrier; a parasite aircraft.
依附于他人以期获得好处或利益的食客
a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
The tapeworm is a parasite that lives in the intestines of its host.
绦虫是一种寄生在其宿主肠道内的寄生物。
Some parasites can change the behavior of their hosts to help themselves reproduce.
有些寄生物可以改变宿主的行为来帮助自己繁殖。
In the rainforest, many parasites rely on specific host species.
在雨林中，许多寄生物依赖特定的宿主物种。
常用介词 on 表示寄生对象。
Lice are parasites on the human scalp.
虱子是人体头皮上的寄生物。
用 that 引导定语从句说明寄生物的特征。
A parasite that lives in the host's gut can cause disease.
生活在宿主肠道内的寄生物会引起疾病。
常用 of 表示寄生物与宿主的关系。
The malaria parasite of humans is transmitted by mosquitoes.
人类疟疾寄生物通过蚊子传播。
Not this
He parasites on his parents.
Use this
He is a parasite on his parents.
错误地将名词 'parasite' 用作动词。正确用法是使用系表结构 'be a parasite on' 表示 '寄生于'。
Not this
The tick is parasite.
Use this
The tick is a parasite.
中文没有不定冠词，学习者容易遗漏。英语中可数名词单数前需要不定冠词 'a'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肠道寄生虫
The doctor diagnosed him with an intestinal parasite.
医生诊断他患有肠道寄生虫。
社会寄生虫
He was labeled a social parasite for refusing to work.
他因拒绝工作而被贴上社会寄生虫的标签。
寄生虫感染
Parasite infection is common in areas with poor sanitation.
在卫生条件差的地区，寄生虫感染很常见。
寄生虫宿主
The flea acts as a parasite host for the tapeworm.
跳蚤是绦虫的寄生虫宿主。
寄生虫物种
Scientists discovered a new parasite species in the Amazon.
科学家在亚马逊发现了一种新的寄生虫物种。
寄生虫负荷
High parasite load can cause serious health problems.
高寄生虫负荷会导致严重的健康问题。
社会寄生虫
He was criticized as a social parasite who never worked.
他从不工作，被批评为社会寄生虫。
寄生在……上
The corporation is a parasite on the local economy, taking profits without giving back.
这家公司寄生于当地经济，只索取不回报。
寄生经济
Some argue that the gig economy has created a parasite economy where workers have no security.
有人认为零工经济创造了寄生经济，工人没有保障。
寄生虫
The 2019 South Korean film 'Parasite' won the Palme d'Or and the Academy Award for Best Picture.
2019年韩国电影《寄生虫》获得了金棕榈奖和奥斯卡最佳影片奖。
我们都是寄生虫。
A line from the film 'Parasite', spoken by the housekeeper, highlighting the theme of mutual exploitation.
电影《寄生虫》中管家的一句台词，强调了相互剥削的主题。
Use parasite naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想“para（旁边）+ site（地点）”，寄生虫总在宿主旁边安家，吸取营养。
混合：生物学/医学语境（本义）和社会/日常语境（比喻义）
Words ending in -site, -sight, -cite, -kite, -light, -night all share the /aɪt/ sound, rhyming with the final syllable of 'parasite'. However, be cautious of words like 'paradise' (/ˈpɛrədaɪs/) which have a different ending, and 'parasitic' (/ˌpɛrəˈsɪtɪk/) which does not rhyme.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.