兮兮
(particle used to exaggerate certain adjectives, in particular 神經兮兮|神经兮兮, 髒兮兮|脏兮兮, 可憐兮兮|可怜兮兮, and 慘兮兮|惨兮兮)
习习
(of the wind) blowing gently; abundant; flying
西西
cubic centimeter (cc) (loanword)
希西家
Hezekiah or Ezekias (740-687 BC), twelfth king of Judah (Judaism)
息息相关
closely bound up (idiom); intimately related
熙熙壤壤
variant of 熙熙攘攘[xi1 xi1 rang3 rang3]
熙熙攘攘
bustling with activity (idiom)
稀稀拉拉
sparse and fragmentary
西西里
Sicily; Sicilia (Italian Island)
严重急性呼吸系统综合症
severe acute respiratory syndrome (SARS)
密西西比州
Mississippi, US state