serene

a.晴朗的；宁静的

sepulchral, sepulchre (US sepulcher), sequel, sequela, sequence, sequence of tenses, sequential, sequentially, sequester, sequestered, sequestrate, sequestration, sequin, sequoia, seraglio, seraph, seraphic, sere, serenade, serendipity, serenely, serenity, serf, serfdom, serge, sergeant, sergeant-major, Sergt (also Sgt), serial, serial number, serialization, serialisation, serialize, serialise, serially, seriatim, series, serif, serio-comic, serious, seriously, seriousness,