bi.en.ni.umn.(名词)【复数】 bi.en.ni.ums 或 bi.en.ni.a [-μn.ô-…] A two-year period.两年时期来源:Latin 拉丁语 bi- [two] * see bi- bi- [二] *参见 bi-annus [year] * see at- annus [年] *参见 at-