FlexiLingo
Every product has to be tested somehow, and sometimes that means finding increasingly creative ways to break it. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
打开播放器：完整文字稿，每个单词都可点击，附翻译和单词卡。
这一集适合你吗？
B1 · 中级
能听懂简单新闻就可以
- 84% 的单词在 B1 或更简单的水平。
- 每分钟 153 词：自然语速。
- 整集共有 149 个较难的单词（B2 及以上）。
试一试：点任意单词
来自本集开头的真实句子，每个单词都标出了难度级别。
点一个单词，用你的语言查看释义。
这些单词你认识吗？
本集中 8 个较难的单词。点一个查看释义，然后标记一下。
标记几个单词，我们会告诉你这一集是否适合你的水平。
这一集适合你吗？
B1 · 中级
能听懂简单新闻就可以
- 84% 的单词在 B1 或更简单的水平。
- 每分钟 153 词：自然语速。
- 整集共有 149 个较难的单词（B2 及以上）。
文字稿
本集开头部分。完整文字稿在播放器中。
较难的单词（B2+）
The first one was the one that was I'm going to show you how to make a canisters actually work. For decades, product testers would assess the bear resistance of a canister by dropping a weight on it from a set height or by trying to puncture it with
a spike that simulated a bear's tooth. But they kept running up against a problem. These tests weren't close enough to reality. They weren't accounting for a bear's creativity and resourcefulness. So then, in the early 2000s, they hit upon an idea of testing the canisters by using something slightly more realistic.
Bears. A manufacturer would say, I have this new design for a bear resistant canister that I want campers to use.
以上是开头部分。 本集其余部分（36 分钟）在播放器中：每个单词都可点击，附翻译、生词收藏和单词卡。
在播放器中继续由音频自动生成，可能存在错误。 音频版权归其发布者所有，并从其订阅源播放。版权所有者可申请删除 — 版权与删除政策