operose
adj.
"involving much labor," 1670s, from Latin operosus "taking great pains, laborious, active, industrious," from opus (genitive operis) "work" (see opus). Related: Operosity.
〔蒋〕[oper工作→劳动，出力，-ose形容词后缀，…的] 费力的，用功的，勤勉的
〔蒋〕[oper工作→劳动，出力，-ose形容词后缀，…的] 费力的，用功的，勤勉的