But how do you make chemicals, Linda? Where do they come from?

可是化学品怎么制造呢，琳妲？化学品是从哪里来的呢？

We're not spraying, so we're not spending money on chemicals.

我们不喷洒，所以我们不花钱买化学品。

We need to test chemicals before they are put into the marketplace.

我们需要在化学品投放市场之前进行测试。

The problem is turning at least one of those chemicals into an effective medicine.

困难在于如何用至一种这样的化学品进行有效治疗。

It doesn't require chemicals or microscopes.

这项新技术不需要化学品，也不需要显微镜。

A multi-storey residential building, where chemicals were also stored, was reduced to a charged shell.

这座存有化学品的多层住宅楼变成了一个“装满火的炮弹”。

This is what doctors do now, in terms of physical intervention through surgery or chemical intervention through drugs.

他们通过手术和化学品的作用来进行物理干预。

Experts describe it as a very toxic chemical that can kill even in very small amounts.

专家表示，这种剧毒的化学品即使用也能致死。

But even the mosquito has been subdued by attention to drainage and by chemical sprays.

然而即使蚊子，也由于我们注意清理污水和喷洒化学品就被制服了。

Cutting off infected branches, or pruning, and spraying chemicals are two ways to deal with blight.

剪掉或修剪被感染的枝条，以及喷洒化学品是处理枯萎病的两种方法。

That's good enough. I generally have chemicals about, and occasionally do experiments. Would that annoy you?

那好极了。我常常搞一些化学品，偶尔也做做试验，你不讨厌吗？

It was in 1897 that a European chemist called Dr Felix Hoffmann produced aspirin from this chemical.

1897欧洲化学家费利克斯·霍夫曼博士将这种化学品制成了阿司匹林。

Organic vegetables are those that are grown without chemicals that can be harmful to human beings or the environment.

有机蔬菜是指生长过程中没有使用过化学品对人体或环境有害的的蔬菜。

Antibiotics-medicinal chemicals like penicillin which can destroy harmful germs, couldn't help because they weren't discovered until decades later.

抗生素——像盘尼西林这样能够消灭有害细菌这样的化学品没能帮上忙，因为它们直到几十后才被发现。

It has soaps, oils, chemicals, biological waste and food scraps in it and by law it has to be treated.

它里面有肥皂，油，化学品，生物废料和食物残渣，而且根据法律它必须被处理。

Rather than using chemicals or mowers, Kirsche said the university hired Jennif Chandler to send in a herd of goats.

克尔舍说该大学没有使用化学品或割草机，而是雇佣约瑟夫·钱德勒送来一群山羊。

The two women were seen in surveillance footage wiping the chemical on Kim's face at the airport, Malaysian police said.

从机场的监控录像中可以看到这两名女性嫌疑人往金正男的面部涂抹化学品，马来西亚警方表示。

You said the chemicals were missing today.

你说化学品今天不见了。

These chemicals and their fumes are toxic.

这些化学品及其蒸气都有毒。

Sometimes cows are given chemicals and artificial foods to make them grow more quickly.

有时会给奶牛喂化学品和人工食品，以使其生长更快。