1. I
2. me
3. my

1. to exist; to be alive
2. (of sb or sth) to be (located) at
3. (used before a verb to indicate an action in progress)

1. Tokyo, capital of Japan
2. Tonkin (northern Vietnam during the French colonial period)

1. station
2. to stand
3. to halt
4. to stop
5. branch of a company or organization
6. website

1. to exchange
2. to change (clothes etc)
3. to substitute
4. to switch
5. to convert (currency)

classifiers: 列, 節, 班, 趟