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1.Researchers looked at 1.1-billion-year-old rocks deep beneath the Sahara Desert.
beneath 在...下方
There was a flower border beneath the wall.
墙脚处有一花坛。
2.Dr. Gueneli said her first reaction was "sheer amazement".
sheer 绝对的
This is a sheer fabrication.
这完全是凭空捏造。
