基础力学双语课件基础力学

双语”的定义 双语的英文是“Bilingual”。根据英国著名的朗曼出版社出版的《朗曼应用语言学词典》所给的定义是: A person who knows and uses two languages. In everyday use the word bilingual usually means a person who speaks, reads, or understands two languages equally well (a balanced bilingual), but a bilingual person usually has a better kn