emigration 是移出移民
immigration 是移入移民
3. migration 是移民 (同时表示包括移出和移入居民）
比如移民到美国，对台湾人来说是 emigration (emigrant)，对美国人来说是 immigration (immigrant)。对台湾人和美国人，都是 migration (migrant)。
1. Emigration and immigration are both forms of migration.
移出移民和移入移民都是移民形式的一种。
2. If you move out of a country, you have emigrated, and you are an emigrant.
如果你搬离一个国家，代表你移出，那你就是个移出者。
3. If you move into a country, you have immigrated, and you are now an immigrant.
如果你搬进一个国家，代表你移入，那你就是个移入者。
4. Either way, or even if you move within the same country, you have migrated, and you are a migrant.
其他类型，也就是你从一个国家其中一个区域搬到另一个区域，你也是移民者。
5. Also, animals and people can all migrate, but only people can immigrate and emigrate.
同样的，动物和人类都能称作移民者或迁徙者，但只有人类能移出和移入哦！
HOW TO REMEMBER
You may be familiar with the prefix ex- meaning “out” from words like exodus. If you can remember both that and identify the immigration with the word in, then this will help you to remember that emigration is from the point of view of coming out, while immigration is from the point of view of coming in.
