immigration
n.
1650s, from immigrate + -ion. As short for "immigration authorities," from 1966.
〔蒋〕[migr=remove，move迁移，-ation名词后缀] 移入，移居，外来的，移民
〔蒋〕[migr=remove，move迁移，-ation名词后缀] 移入，移居，外来的，移民
| 词汇 | immigration |
| 词根词缀 | Online Etymology Dictionary 词根李平武蒋争 immigration n. 1650s, from immigrate + -ion. As short for "immigration authorities," from 1966. 〔蒋〕[migr=remove，move迁移，-ation名词后缀] 移入，移居，外来的，移民 |
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