di-
combining form /daɪ/
/daɪ/
- twice; two; double
两次;二; 双 - dicotyledon
双子叶植物
- dicotyledon
- (chemistry
) (in nouns that are names of chemical compounds化学 ) containing two atoms or groups of the type mentioned构成化合物名词 含有两个原子的;含有两组…物质的 - carbon dioxide
二氧化碳
- carbon dioxide
词源from Greek dis ‘twice’.