(a) International precursor controls were clearly working, as reflected in the statistics on seized precursors, prevented diversion attempts and changed international trafficking routes and modus operandi;
(a) 国际前体管制正在取得明显成效，关于缉获前体、所阻止的转移图谋以及国际贩运路线和作案手法变化的统计资料都表明了这一点；