B2
Collocation
تحقیق و توسعه
tahghigh va tose'eh
research and development
意思
Systematic investigation aimed at creating new knowledge or improving products/processes.
意思
Systematic investigation aimed at creating new knowledge or improving products/processes.
有帮助吗？
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
