The past, like the future, is indefinite and exists only as a spectrum of possibilities.
预测蓬勃发展的积极情绪与消极情绪的比例约为3比1。高于这个比例,人们往往会蓬勃发展;低于这个比例,人们往往会萎靡不振。
The next generation of farmers needs both tradition and innovation to thrive.