入境 rùjìng to enter a country
How to remember 入境: 入 enter + 境 boundary = to enter a country.
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How it is used
- To enter a country through immigration - 入境签证 (rùjìng qiānzhèng) entry visa; 办理入境手续 (bànlǐ rùjìng shǒuxù) go through entry formalities.
- The exact opposite of 出境 (chūjìng, leave the country); the pair 出入境 covers all border-crossing - 出境旅游 (chūjìng lǚyóu) travel abroad.
- Official/administrative register, tied to borders and customs.