禁止来源

prohibited substance───违禁物质

prohibited substances───违禁物质

point source───点声源

closed source───闭源

point sources───点声源

primary source───主源；第一手来源

prohibited───v.禁止（prohibit的过去分词形式）；adj.被禁止的

prohibiter───n.禁止者；阻止者

prohibitive price───高得使人不敢买的价格；[物价]抑制购买的价格

Strictly prohibited at the source of qualified teachers has circumstances "provision has not completed", the long-term hire substitute staff.───严禁在有合格教师来源的情况下“有编不补”，长期聘用代课人员。

Starting in 2007, Nyingchi has prohibited any form of deforestation, which severed the source of income of some people.───开始，林芝开始禁止一切形式的破坏森林，而砍伐木料是当地很多人的收入来源。