1. habitat n. the natural home of a plant or animal (动植物的)栖息地或产地: I prefer to see animals in their natural habitat, rather than in zoos.
相关语汇
habitation: The dilapidated hut is unfit for human habitation. habitable: Their damp house is scarcely habitable. uninhabitable: The planet Jupiter is uninhabitable. inhabit: Woodpeckers inhabit hollow trees.
2. infest v. (of something harmful, dangerous, or unwanted) to be present (in a place) in large numbers or to a great degree (大量危害物)出没于. 侵扰. 骚扰: It would be crazy to swim in these shark-infested waters.
近义语汇
swarm: The place was swarming with tourists. teem: This river teems with all kinds of fish in summer. overrun: The stables are overrun with rats. beset: The plan was beset with difficulties from the beginning.
3. lifespan n. the average length of life of a sort of animal or plant or the time for which a material object will last (动植物的)平均寿命. (物品的) 使用年限: Men have a short lifespan than women.
相关语汇
life expectancy or expectation of life 预期寿命. 平均(期望)寿命: Life expectancy for men is about 78 years in Japan.
解构分析
span n. 指一段时间或(桥梁)跨度/全长: attention span. memory span. an unbroken span of concentration. The bridge crosses the river in a single span.
span v. 跨越/横跨. 延伸/贯穿: His interests spanned a wide range of subjects. The game has a history spanning three centuries.故lifespan的直意为＂生命的跨度＂
4. metabolism n. the system of chemical activities by which a living thing gains power(energy), esp. from food 新陈代谢: The metabolism is slowed down by extreme cold.
同源语汇
metabolic: People who have inherited a low metabolic rate will gain weight. metabolize: Diabetics cannot metabolize glucose properly.
5. torpid a. (esp. of an animal that sleeps through the winter) having lost the power of feeling or moving. lazy or inactive. moving or thinking slowly (冬眠动物)失去活动能力的. 处于蛰伏状态的: The heat and humidity made us feel torpid.
近义语汇
lethargic: The weather made her listless and lethargic. sluggish: sluggish traffic. a sluggish economy dormant: During the winter the seeds lie dormant in the soil. latent: These children have a huge reserve of latent talent.