be a bloodsucker
用于比喻，指剥削他人的人。
The corrupt landlord is a bloodsucker.
那个腐败的地主是个吸血鬼。
吸血动物
吸血鬼；嗜血者；残暴的人；鬣蜥科蜥蜴；吸血动物；吸血虫(如水蛭、蚊子)；嗜血成性的人；杀人者；暴力罪犯
An animal that drinks blood by biting or sucking, such as a leech or mosquito.
吸血动物；吸血虫(如水蛭、蚊子)
An animal that drinks the blood of others, especially by sucking blood through a puncture wound; a leech, mosquito etc.
嗜血成性的人；杀人者；暴力罪犯
Someone who sheds blood; a bloodthirsty person; a violent criminal.
吸血鬼；以(人)血为食的超自然生物
A supernatural being who feeds on (especially human) blood; a vampire.
鬣蜥科蜥蜴；尤指变色树蜥和澳大利亚杰克龙蜥
Any of various lizards of the family Agamidae, especially the changeable lizard (Calotes versicolor) of Asia, and the jacky dragon of Australia, Amphibolurus muricatus).
The leech is a bloodsucker that attaches to animals and feeds on their blood.
水蛭是一种附着在动物身上并以它们的血液为食的吸血动物。
用法提示：此句中，bloodsucker指水蛭这类吸血动物，用作名词。
That loan shark is a ruthless bloodsucker who preys on desperate people.
那个高利贷者是个无情的吸血鬼，专门剥削走投无路的人。
用法提示：此句中，bloodsucker比喻剥削他人的人，用作名词。
The workers called their exploitative boss a bloodsucker for stealing their overtime pay.
工人们把压榨他们的老板叫作吸血鬼，因为他克扣加班费。
用法提示：此句中，bloodsucker指不公正剥削员工的人，用作名词。
用于比喻，指剥削他人的人。
The corrupt landlord is a bloodsucker.
那个腐败的地主是个吸血鬼。
用于字面义，指吸血生物。
A bloodsucker that feeds on blood can transmit diseases.
以血为食的吸血动物可能传播疾病。
表达指责或控诉。
The workers called the exploitative boss a bloodsucker.
工人们称那个剥削人的老板为吸血鬼。
leech 与 bloodsucker 都有“吸血动物”和“剥削者”的比喻义，但 leech 更强调依附吸吮，而 bloodsucker 语气更强，多用于口语或贬义。
vampire 专指传说中吸血的超自然生物，而 bloodsucker 可指任何吸血动物或比喻剥削者，语义范围更广。
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