Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...

See? “By” originally means “bye” or byway. That’s why, in fact, some people still spell “by the by” as “by the bye”. By the ...

7．As is known to us all 众所周知,…… 8．As long as 只要… 9．But for... 若不是因为;如果没有…… 10．Can you believe (that) 你相信……吗 ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...