比喻做事要专心致志，不能一心二用。

The speech we hear is an indication of that which we don't hear. It is a necessary avoidance, a violent, sly, anguished or mocking smokescreen which keeps the other in its place.

煤炭行业的未来在于清洁高效利用

The mind is nature's masterpiece of adaptation.

贫困并非不可避免；它是一个可以解决的问题。