1、刻苦地
...seriously adv.认真地；严重地,严肃地assiduously adv.刻苦地；勤勉地explore vt.探索；探测；探险 ...
2、勤勉地
...seriously adv.认真地；严重地,严肃地assiduously adv.刻苦地；勤勉地explore vt.探索；探测；探险 ...
3、勤奋地
... ominously of bad omen 不吉祥地 assiduously 勤奋地 continuously 连续不断地 ...
4、恳切地
assiduously(恳切地), 此释义来源于网络辞典。
assiduously study致力研究;比喻辛勤攻读;刻苦学习;专心从事
practise assiduously持之以恒地练习
tap assiduously持之以恒地拍打
labour assiduously不懈地劳动
insist assiduously不懈地坚持
assiduously seek孜孜以求
gather assiduously不知疲倦地收集
assiduously ad勤奋地
use assiduously殷勤地使用