1. Soviet Union, 1922-1991
2. abbr. for Union of Soviet Socialist Republics (USSR) 苏维埃社会主义共和国联盟 Sūwéiāi Shèhuìzhǔyì Gònghéguó Liánméng

1. to learn
2. to study
3. to imitate
4. science
5. -ology

1. home
2. family
3. (polite) my (sister, uncle etc)
4. classifier for families or businesses
5. refers to the philosophical schools of pre-Han China
6. noun suffix for a specialist in some activity, such as a musician or revolutionary, corresponding to English -ist, -er, -ary or -ian

classifier: 個

1. research
2. a study
3. to research
4. to look into

classifier: 項

1. what?
2. something; anything

1. particle indicating that a previously asked question is to be applied to the preceding word ("What about ...?", "And ...?")
2. particle for inquiring about location ("Where is ...?")
3. particle signaling a pause, to emphasize the preceding words and allow the listener time to take them on board ("ok?", "are you with me?")
4. (at the end of a declarative sentence) particle indicating continuation of a state or action
5. particle indicating strong affirmation