無的英語翻譯：

naught; nonexistence; not; nothing; without; lack; zero
【醫(yī)】 a-; leipo-; lipo-; non-

條件的英語翻譯：

capitulation; condition; factor; if; prerequisite; qualification; requirement
term
【計】 condition; criteria
【醫(yī)】 condition
【經(jīng)】 condition; proviso; terms

義務的英語翻譯：

devoir; duty; incumbency; mortgage; obligation; onus; volunteer
【經(jīng)】 engagements; liability; obligation