1) advantage and disadvantage for de farming and afforestation
退耕难点与机遇
2) hardness and opportunity
困难与机遇
3) cropland conversion and grazing prohibition
退耕与禁牧
5) never shrink from difficulties
遇到困难决不后退
6) upportunity and conjuncture
机遇与危机
补充资料：难点
1.问题难以解决之处。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条