Kate's Blog

serious  

needing to be thought about carefully; not only for pleasure       需認真思考的；嚴肅的

that must be treated as important                                          重要的；須重視的

thinking about things in a careful and sensible way; not silly     嚴肅的；穩重的

sincere about something; not joking or meant as a joke           當真的；認真的

http://www.google.com.tw/dictionary?langpair=en|zh-TW&q=serious&hl=zh-TW&aq=f

seriously

in a serious way 嚴重地；嚴肅地；認真地 

used at the beginning of a sentence to show a change from joking to being more serious 

（用於句首，表示轉為談正事）                                           說正經的，說實在的

        【  joke  〈 v.〉  開玩笑         〈 n.〉 無需認真對待的事情 ; 輕鬆的事 ; 容易的事 】

take somebody/something seriously      認真對待

to think that somebody / something is important and deserves your attention and respect     

http://www.google.com.tw/dictionary?langpair=en|zh-TW&q=seriously&hl=zh-TW&aq=f

serious   反義字

playful  

made or done in fun; not serious     打趣的；鬧着玩的；嬉戲的
http://www.google.com.tw/dictionary?langpair=en|zh-TW&q=playful&hl=zh-TW&aq=f

trivial         / 'trɪvɪəl /

not important or serious ;  not worth considering   不重要的；瑣碎的；微不足道的
http://www.google.com.tw/dictionary?langpair=en|zh-TW&q=trivial&hl=zh-TW&aq=f