1
- speaking two languages fluently流利地讲两种语言的：
a bilingual secretary.
能流利地说两种语言的秘书。
1.1
- (of a text or an activity) written or conducted in two languages（文本或活动）双语的, 用两种语言进行的：
bilingual dictionaries
双语词典
bilingual education.
双语教育。
1.2
- (of a country, city, or other community) using two languages, especially officially（国家、城市或社区）使用两种语言的（尤指正式地）：
the town is virtually bilingual in Dutch and German.
这个城镇实际上同时使用荷兰语和德语两种语言。
- a person fluent in two languages熟谙两种语言的人。
派生词
bilingualism
noun词源
mid 19th cent.: from Latin bilinguis, from bi- 'having two' + lingua 'tongue '+ -AL.