tutorial资讯

// 从右找第一个小于pivot的

I believe the 2984 did something fairly similar, but the details are now obscure

，详情可参考heLLoword翻译官方下载

Like friendly and clean interface

强化协作帮扶，明确“完善东西部协作机制，深化对口支援、定点帮扶”……