adj.可行的；adj.可以存活的,
Merriam-Webster Online Dictionary
viable (adjective)1.
capable of living , especially having attained such form and development as to be normally capable of outside the mother's womb - surviving a viable fetus
2.
capable of growing or developing - viable seeds viable eggs
3.
a) capable of working, functioning, or adequately - developing viable alternatives
b) capable of existence and development as an independent unit - the colony is now a viable state
c) (1) having a reasonable chance of succeeding - a viable candidate
(2) financially sustainable - a viable enterprise
Merriam-Webster Online Thesaurus
viable (adjective)capable of being done or carried out
SYNONYMS:
achievable, attainable, doable, feasible, practicable, realizable, viable, workableRELATED WORDS:
practical, reasonable, sensible; contingent, likely, probable; acceptable, believable, conceivable, creditable, plausible, thinkable; actionable, available, usable ( useable)NEAR ANTONYMS:
impractical, unrealistic; doubtful, dubious, far-fetched, improbable, unlikely; implausible, inconceivable, incredible, unbelievable; futile, useless, vain; absurd, fantastic ( fantastical), outlandish, preposterous, ridiculous; unthinkable