是非是非(ぜひぜひ)certainly, by all means

後輩(こうはい)：「是非(ぜひ)是非(ぜひ)、私(わたし)の家(いえ)に来(き)てください！」

Junior: "By all means, please come to my house!" {certainly, by all means}

弟子(でし)：「師匠(ししょう)の作品(さくひん)を是非(ぜひ)是非(ぜひ)見(み)せて下(くだ)さい。」

Disciple: "Master, please, by all means, show me your work." {certainly, by all means}

母(はは)が先生(せんせい)に：「息子(むすこ)の教育(きょういく)を、是非(ぜひ)是非(ぜひ)お願(ねが)いします。」

My mother said to the teacher: "Please, by all means, take care of my son's education." {certainly, by all means}

会社(かいしゃ)の後輩(こうはい)：「先日(せんじつ)生(う)まれた赤(あか)ちゃんに是非(ぜひ)是非(ぜひ)会(あ)いに来(き)て下(くだ)さい！」

Junior colleague at work: "By all means, please come and see the baby that was born the other day!" {certainly, by all means}

居酒屋(いざかや)の看板(かんばん)：「ビールもお酒(さけ)も冷(ひ)えています！是非(ぜひ)是非(ぜひ)おいでください！」

Sign at the izakaya: "Beer and sake are both chilled! Certainly, by all means, please come in!" {certainly, by all means}