num. 三
中考高考考研
Collins.5 / BNC.104 / COCA.135
number
num.
the three Rs
in twos and threes
noun
Synonym: trey
Synonym: 3IIItriothreesometierceleashtroikatriadtrinetrinityternaryterniontriplettercetterzettotreydeuce-ace
adj
Synonym: 3iii