assiduous的精選

想知道如何拼寫assiduous嗎？Hisspiritofassiduousstudyisworthyofemulation.Thereisnosuchthingasgenius,itisonlyassiduousanddiligent.Iknowthedegreeofmastermeantmanyyearsofassiduousstudyandhardwork.Withmyhard...