The drought persisted for several centuries, during which the Tiwanaku went into a slow decline.

干旱持续了若干世纪, 在这期间提瓦那库慢慢衰落下去.

互联网

But no matter how much you exercise, there is an inevitable, slow decline in strength.

但是,无论人们如何锻炼, 其肌力总会不可避免地 、 逐渐地衰失.

互联网