On the face the reason of the long spot1, outside because of:The ultraviolet ray projects light upon, use a bad cosmetics and the outside incitement chafe;

脸上长斑的原因 1、外因：紫外线照射，使用不良化妆品，外界刺激擦伤；

youdao

Although they chafe against the limits imposed on intellectual and political freedom, surveys suggest that many value stability above all.

ECONOMIST: A survey of Indonesia

Though they may chafe at the idea of armed guards on planes, they realise that there is little chance of the Bush administration backing down.

ECONOMIST: More security, more delays | The

Rising stars who chafe against the hierarchy occasionally opt to set up on their own.

ECONOMIST: Japan��s ad giant buys a British agency