serene adj. 平静的 (calm and peaceful) / sɪˈriːn/
sincere adj. 真诚的 (having or showing true feelings that are expressed in an honest way) / sɪnˈsɪə/
serendipity n. 意外发现珍奇事物的才能 (the faculty or phenomenon of finding valuable or agreeable things not sought for) /ˌsɛr(ə)nˈdɪpɪti/
welter v. 打滚 (to rise and fall or toss about) /ˈwɛltə/
v. 浸湿 (to become deeply sunk, soaked, or involved)
n. 杂乱混合 (a state of wild disorder)
swelter v. 使闷热,使中暑 (to suffer, sweat, or be faint from heat) /ˈswɛltə/
caviler n. 吹毛求疵者 (British: someone who complains about things that are not important) /ˈkav(ə)l/
cavalier adj. 随意的 (marked by or given to offhand and often disdainful dismissal of important matters) /ˌkavəˈlɪə/
oval adj. 椭圆的 (something that has the shape of an egg) /ˈəʊv(ə)l/
oral adj. 口语的,口头的 (spoken) /ˈɔːr(ə)l/