1 I

2 me

3 my

1 basic

2 fundamental

3 main

4 elementary

1 we

2 us

3 ourselves

4 our

1 Japan

1 root

2 stem

3 origin

4 source

5 this

6 the current

7 original

8 inherent

9 originally

10 classifier for books, periodicals, files etc

1 small capital, huge profit (idiom); to put in a little and get a lot out

1 lit. if three walk together, one can be my teacher (idiom, from the Analects of Confucius)

2 you have sth to learn from everyone

1 to talk shop all the time (idiom)

1 lit. to be the meat on sb's chopping block (idiom)

2 fig. to be at sb's mercy

1 lit. you die, I live (idiom); irreconcilable adversaries

2 two parties cannot coexist