Word · Frequency #19877
leech
水蛭；蚂蟥
a small blood-sucking worm that lives in water
- 1.
A typically aquatic blood-sucking annelid of the subclass Hirudinea, especially Hirudo medicinalis.
蛭纲下通常水生的吸血环节动物,尤其是医用水蛭
- 2.
The vertical edge of a square sail.
横帆的垂直边缘
- 3.
carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end
肉食或吸血的水陆生蠕虫,通常两端有吸盘
- 4.
A person who derives advantage from others in a parasitic fashion.
以寄生方式从他人身上获取利益的人
- 5.
The aft edge of a triangular sail.
三角帆的后缘
- 6.
a follower who hangs around a host (without benefit to the host) in hope of gain or advantage
依附他人以求利的跟随者
寄生虫；吸血鬼；帆的后缘；帆的侧缘；蛭纲下通常水生的吸血环节动物,尤其是医用水蛭；横帆的垂直边缘；肉食或吸血的水陆生蠕虫,通常两端有吸盘
In use
Leeches are often found in freshwater ponds and streams.
The corrupt official acted like a leech, draining the public funds.
He is a social leech who always relies on others for money.
a leech
基本用法，表示水蛭这种动物。
The doctor removed a leech from the patient's leg.
医生从病人的腿上取下了一只水蛭。
a leech on [someone/something]
比喻用法，指榨取他人利益的人。
He is just a leech on his parents, never working.
他只是他父母身上的吸血鬼，从不工作。
leech [noun]
leech用作定语修饰名词，常见于医学术语。
Connections
Collocations
- medicinal leech
- 医用水蛭
- The medicinal leech secretes an anticoagulant to keep blood flowing.医用水蛭分泌抗凝血剂以保持血液流动。
- leech therapy
- 水蛭疗法
- Doctors sometimes use leech therapy to relieve pressure on swollen tissue.医生有时用水蛭疗法来缓解肿胀组织的压力。
- social leech
- 社会寄生虫
- My roommate is a social leech; she never pays for anything.我的室友是个社会寄生虫；她从不为任何东西付钱。
Idioms & figurative uses
- a leech on society
- 社会的寄生虫；靠他人养活的人People called him a leech on society because he never worked and lived on benefits.人们称他为社会的寄生虫，因为他从不工作，靠救济金生活。
- stick like a leech
- 像水蛭一样粘着不放The new intern sticks like a leech to the manager.新来的实习生像水蛭一样粘着经理不放。
Learner notes
Memory Tip
水蛭两端有吸盘，吸住宿主不松口；由此记住 leech 也指'寄生者、吸血鬼'。
Context & Register
语域：neutral 常见场景：生物学、医学、自然话题 作“水蛭”这一本义时，通常用于生物学、医学或自然类描述，语气中性；在日常口语中也会出现，没有特别的正式或非正式色彩。
Grammar Note
The noun 'leech' is countable. Its plural form is 'leeches'.
Pronunciation & Spelling
以上词都与 leech /liːtʃ/ 押韵，读作 /iːtʃ/。注意拼写相似的 witch /wɪtʃ/ 和 rich /rɪtʃ/ 读短元音 /ɪ/，与 leech 的 /iː/ 不同。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.