-----------------------------------
静か, 閑か, しずか
1. quiet, silent
2. slow, unhurried
3. calm, peaceful
安静,寂静;慢悠悠的,不慌不忙的;平静,安宁
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题;表示与另一选项(无论是否明确提及)形成对比;表示强调