词汇	frost in the ground
释义	frost in the ground 土地冻着
随便看	shallow-water wave speed shallow water wharf shallow water zone Shallow waves shallow weld shallow well shallow well multi-stage jet pump shallow well pump shallow well thermometry shallow-wet intermission shallow winter breaking shallow work shallow working face shallow workings shallowy shallow zone producing shall's shall savings interest be taxed shall savings interest be taxed? Shall she come right now Shall she come right now? Shall she give up her job when she have a baby Shall she give up her job when she have a baby? shall the boy come in Shall the boy come in?