// 倒序遍历2*len-1次：模拟数组循环（核心！易错点1）
"That will need to be paid off at some point," says Quilter Cheviot's Ben Barringer. "Having more debt means you've got more burden, and that means you've got less to spend on content."
，这一点在爱思助手下载最新版本中也有详细论述
Global news & analysis
Kevin Church/BBC News
27 February 2026