潜在

potential; latent; underlying; hidden; dormant; lurk; lie dormant; be latent; be potential; potentially; latently

义务

duty; obligation; commitment; responsibility; service; task; volunteer; liability; onus; obligatory; compulsory; mandatory; voluntary; honorary; unpaid; dutifully; voluntarily; as an obligation; for free; Hon (short for Honorary, used in official titles of jobs)