immigration/ˌɪmɪ'greɪ∫ən/

n. the process of coming to live in a different country

n. [U] 移民：The law restricts immigration into the country. 法律限制向这个国家移民。

构词immigrate + -ion

音组-ration/-'reɪ∫ən/

celebration; generation; immigration; liberation