股市的短期波动是不可预测的,但长期趋势是可以预测的。
The stock market is unpredictable in the short term, but predictable in the long term.
记忆是一种成就,甚至是一种更新。
Memory is the last fortress against forgetting.
气候系统异常复杂,我们对它的理解仍在不断发展。