誠心誠意
せいしんせいいseishinseii
adverb · noun · adjectival
- in all sincerity
- with one's whole heart
- whole-hearted devotion
せいしんせいいseishinseii
adverb · noun · adjectival
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences