serious的副詞是：seriously
seriously：adv.認真地嚴重地嚴肅地(用於句首，表示轉爲談正事)說正經的，說實在的非常極其。 擴展資料
Seriously though， it could be really dangerous.
不過說實在的，這事說不好真的很危險。
It made a refreshing change to be taken seriously for once.
總算有一次受到認真對待，這變化真是令人耳目一新。
Why can't you ever take anything seriously?
你怎麼對什麼都不當回事呢
Nothing will be done because no one in authority takes the matter seriously.
什麼也辦不了，因爲掌權的誰也不認真對待這個問題。
We take threats of this kind very seriously.
我們對這類威脅非常重視。
I wish you'd take me seriously.
我希望你認真對待我的話。
