科学美国人60秒 SSS Fingering Fake Whiskeys with Isotopes_在线英语听力室

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Whiskeys claimed to be from the 19th century are revealed to be made with much more recently grown barley¹, thanks to the unique isotopic² fingerprint³ of the nuclear-testing era.

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收听单词发音

1 barley
n.大麦，大麦粒
参考例句：
They looked out across the fields of waving barley.他们朝田里望去,只见大麦随风摇摆。 He cropped several acres with barley.他种了几英亩大麦。

2 isotopic
adj.同位素的，合痕的
参考例句：
The isotopic signatures of most ancient limestones indicated the same process. 大多数古代石灰岩的同位素特征说明了同样的过程。来自辞典例句 Isotopic discrimination is not likely. 同位素甄别是不可能的。来自辞典例句

3 fingerprint
n.指纹；vt.取...的指纹
参考例句：
The fingerprint expert was asked to testify at the trial.指纹专家应邀出庭作证。 The court heard evidence from a fingerprint expert.法院听取了指纹专家的证词。

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科学美国人60秒 SSS Fingering Fake Whiskeys with Isotopes