单词	volunteer teaching
释义	volunteer teaching 支教慈善事业
随便看	marine archaeology marine archeologies marine archeology marine architect marine architecture marine area marine area management marine areas Marine Array Experiment marine artificial port Marine Artilleries Battalion marine aspergillus marine aspergiUus fumigatus marine associate degree completion program marine association marine atlas marine atmosphere marine atmosphere corrosion marine atmosphere corrosion-resisting steel marine-atmosphere environment Marine atmospheric marine atmospheric boundary layer marine atmospheric chemistry marine atmospheric corrosion marine atmospheric corrosion test