leanv.倾斜；倾向；依靠；倚；屈身adj.瘦的；贫乏的；无脂肪的n.瘦肉；倾斜，倾向lean year歉收年lean pork猪精肉lean-ton.[建]单坡屋顶adj.单倾斜面的；单坡的lean soil贫瘠土壤lean down弯下身来，俯身lean sand瘦砂lean diet歉收lean coal低级煤,贫煤lean meatn.瘦肉Lean ores贫矿