No one likes being alone. We just don't want to make friends reluctantly. If we did that, we'd probably just be disappointed.
信贷市场的歧视让穷人支付更高的利息。
你不能让赞美或批评影响你。沉迷于任何一种都是弱点。
可持续性不仅是一种趋势,更是一种责任。
Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.