The key to successful livestock farming lies in balancing productivity with animal welfare.
The study of heuristics reveals how we make quick, efficient decisions, but also how these shortcuts can lead to systematic errors.
我們必須平衡短期能源需求與長(zhǎng)期環(huán)境目標(biāo)。
我覺得布什總統(tǒng)根本沒有為艾滋病做任何事。事實(shí)上，我都不能確定他會(huì)不會(huì)拼艾滋這個(gè)單詞。