进行中的；已开始的
Merriam-Webster Online Dictionary
under way (adverb)1.
in motion not at anchor or aground
2.
into motion from a standstill
3.
in progress - afoot preparations were under way the season got under way with a bang
Merriam-Webster Online Thesaurus
under way (adverb)in progress
SYNONYMS:
afoot, under weighNEAR ANTONYMS:
deferred, delayed, postponed; suspended