We can't plant the vegetables while the erath is still frostbound.我们不能在土地还封冻时种植蔬菜....

adj.冰冻的，不热情的...

frostbound的音标：frostbound的英式发音音标为：['frɒstbaʊnd]frostbound的美式发音音标为：['frɔstˌbaʊnd]...