However , a fundamental tension besets the exercise .

然而，有一种根本的紧张形势困扰着这个对话机制。

Self-contradiction besets all governments as they try to work out a role for english in their national culture .

这一自相矛盾的命题同样困扰着所有想为英语在本国文化中某得一席之地的政府。

When ill luck besets us , to ease the tension we have only to remember that .

当恶运降临在我们身上，为了纾缓压力，我们要记住快乐是相对的。

The central bank 's defenders say its unorthodox monetary policy is a brave attempt to deal with a tricky problem-volatile capital flows-that besets many emerging markets .

央行的支持者则认为这种离经叛道的做法是应对资本波动性流动这一棘手问题的大胆尝试，很多新兴市场主体对此都束手无策。