Trine

详细解释:a. 三倍的, 三重的
n. 三个一组

英语解释：

名词 trine:

the cardinal number that is the sum of one and one and one同义词：three, 3, III, trio, threesome, tierce, leash, troika, triad, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace