货币是一层面纱,但当这层面纱飘动时,实际产出可能会受到影响。
I don't think President Bush is doing anything at all about Aids. In fact, I'm not sure he even knows how to spell Aids.
生活中最重要的事情不是利用你的收益,而是避免你的损失。
煤炭建设了这个国家,煤炭也将保持它的强大。
Technology can help us monitor forests, but wisdom teaches us how to preserve them.