blackening造句
Inthespringfiresweptacrossthehills,blackeningthem.adiseaseblackeningtheleavesofpearandappletrees.Thesaidliquidconsistsofblackeningliquidandphosphatizationliquid.Theinfluenceofammoniummolybdate,cobalts...
Inthespringfiresweptacrossthehills,blackeningthem.adiseaseblackeningtheleavesofpearandappletrees.Thesaidliquidconsistsofblackeningliquidandphosphatizationliquid.Theinfluenceofammoniummolybdate,cobalts...