field-worker

n person who helps in practical field-work 实地考察者; 现场调查者.

Fid Def, fiddle, fiddle with, fiddler, fiddlesticks, fiddling, fiddly, fidelity, fidget, fidgety, field, field hockey, Field Marshal, field officer, field sports, field-day, field-events, field-glasses, field-test, field-work, fielder, fieldsman, fiend, fiendish, fiendishly, fierce, fiercely, fierceness, fierily, fieriness, fiery, fiesta, FIFA, fife, fifteen, fifteenth, fifth, fifthly, fiftieth, fifty,