Hi, I'm Scientific American podcast editor Steve Mirsky. And here's a short piece from the December 2019 issue of the magazine, in the section called Advances: Dispatches from the Frontiers of Science, Technology and Medicine. The article is titled "Quick Hits," and it's a rundown of some science and technology stories from around the globe, compiled by assistant news editor Sarah Lewin Frasier.
Summer's powerful drought revealed a more than 4,000-year-old oval of at least 100 standing stones called the Dolmen of Guadalperal, which had been submerged since 1963 in an engineered reservoir.
Scientists identified a small group of Nordmann's greenshanks, among the most endangered shorebirds, in a bog in Russia's far eastern region. They helmed the first in-depth study of the bird since 1976 and are the first ever to capture a photograph of an adult on a nest.
From New Zealand:
Researchers found that humpback whales traveling near Raoul Island, 700 miles off New Zealand's coast, learn songs from members of other breeding grounds.
Climate models have more firmly connected a record-setting cold European summer in 1816 to the previous year's eruption of Indonesia's Mount Tambora, which injected sulfur dioxide into the atmosphere and caused widespread surface cooling.
And from Brazil:
A newfound species of electric eel, Electrophorus voltai, produces the strongest shock scientists have ever measured from a living animal. It can produce 860 volts at up to one amp of current.
That was "Quick Hits," by Sarah Lewin Frasier.
科学家在俄罗斯远东地区的一个沼泽地里发现了一小群小青脚鹬，它们是最濒危的滨鸟之一 。他们主导的这项研究是自1976年以来对小青脚鹬进行的首个深入研究，也是有史以来第一次在鸟巢中拍摄到成年鸟的照片 。
一种最新发现的电鳗物种——伏打电鳗——产生了科学家有史以来在活体动物身上测量到的最强电击 。在高达1安培的电流下，它可以产生860伏电压 。
1. at least （数量）至少，不少于；
Every time she travels on the bus it's delayed by at least three hours.
2. connect to 把…联系起来；
Dylan's participation in the massacre was impossible for me to accept until I began to co nnect it to his own death.
3. inject into 添加；注入；
The technique consists of injecting healthy cells into the weakened muscles.
4. up to 高达；多达；
Up to twenty thousand students paid between five and six thousand dollars.