Meaning of sū lián:
苏联
Soviet Union, 1922-1991; abbr. for Union of Soviet Socialist Republics (USSR) 蘇維埃社會主義共和國聯盟|苏维埃社会主义共和国联盟[Su1 wei2 ai1 She4 hui4 zhu3 yi4 Gong4 he2 guo2 Lian2 meng2]
Zài lìshǐ kè shàng, wǒmen xuéxíle guānyú Sūlián hé lěngzhàn de nèiróng.
在历史课上,我们学习了关于苏联和冷战的内容。
In history class, we learned about the Soviet Union and the Cold War.
Sūlián zài 20 shìjì de lìshǐ zhōng bànyǎnle zhòngyào juésè.
苏联在20世纪的历史中扮演了重要角色。
The Soviet Union played an important role in the history of the 20th century.