Multiple ash layers suggest that eruptions killed countless animals from time to time. But when the volcano was inactive, the site supported a wooded area.

一层又一层的火山灰预示着火山爆发不时带走无数动物的生命。但一旦火山进入不活跃状态，这地方又会被树木所覆盖。

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Once a site becomes inactive, subsequent owners may not even know of its prior use.

如果处理场地闲置一段时期，以后的业主甚至不了解此场地先前的用途。

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Mechanisms of antibiotics resistance includes: (1) target site modification; (2) production of inactive enzymes; (3) decrease of drugs penetrance; (4) expression of efflux pumps.

抗菌药物耐药机制包括：(1)靶位修饰；(2)产灭活酶；(3)药物渗透力下降；(4)外排泵表达。

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Then, arriving at the tumor site, it would be completely inactive until the specific wavelength of light is shone onto the particles.

CNN: Interview: Naomi Halas

At a formal gripe session with eight Ebay executives that weekend, some long-time disciples expressed the feeling they weren't particularly well served, complaining that customer support is inadequate, that Ebay staffers know less about navigating the site than users, that the company is slow to toss out inactive sellers, particularly those who hang on to user names that others would like to have.

FORBES: Magazine Article

The link that Michael Arrington pointed to is, in fact, on an inactive legacy page, one of a few that we had neglected to remove from the site.

FORBES: The Pains of Rebuilding