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.
墻腳處有一花壇 。
2.Dr. Gueneli said her first reaction was "sheer amazement".
sheer 絕對的
This is a sheer fabrication.
這完全是憑空捏造 。