twobitadj.便宜的
twonum.二;两个
two-way charge双向收费
Two-site ELISA双抗体夹心ELISA法
two trace method双线扫描法
two-pass grate二段式链篦机
two-fluid cell两液电池
two-place verb双项动词
two-way system双向体系
two-glass test两杯试验
two-stage risk两阶段风险
two-win theory双赢理论