The second lesson was to remember that "sometimes life can turn sour", and to be prudent.

第二点是记住“人生总有不如意时”，因此要居安思危。

youdao

To help get their money, firms are calling in specialist collection agencies soon after debts turn sour.

为了帮助收回自己的资金，不良债务出现不久，公司就会召集催收中介的专家。

youdao

Loans to many property developers are likely to turn sour, but these amount to only 7% of total lending.

对房产开发商的贷款前景可能不怎么乐观，但这些仅占贷款总额的7%。

youdao

Venture folks have seen a market across the board turn sour on them before.

FORBES: Venture Vetting

As the Libyan intervention threatens to turn sour, there could be recriminations between the two camps.

ECONOMIST: Bagehot

Other times those relationships turn sour and the office becomes a minefield of anxiety and distraction.

FORBES: Who's Finding Love At Work?