random（聽發音）這個英文單字本身是＂隨機的＂或＂任意的＂意思，不過也常用來表示在某些固定數量的樣本中，隨機或隨意挑選出一個東西，例如隨便挑選一個禮物英文就可以說 random pick a gift。
隨便英文造句練習
I am not a casual person.我不是個隨便的人。
Mike is very arbitrary to eat.
麥克吃東西很隨便。
Maria arbitrary got a taxi and went to Florida.
瑪麗亞隨便找了一輛計程車就往佛羅里達出發了。
As long as the completion of the checkout within the period can random pick a gift.
只要在期限內完成結帳就能隨便挑選一項禮物。
Kate casually bought a dress, we all said very nice.
凱特隨便買了一件洋裝，大家都說很好看。
Hair stylist just arbitrary cut an elegant hairstyle.
髮型師隨便剪了一個優雅的髮型。
Baker can just arbitrary make a delicious bread.
麵包師傅隨便就能做出一個好吃的麵包。
Writing program cannot be casually, otherwise there will be a lot of problems.
寫程式不能隨便，否則會出現很多問題。
Do not marry someone else casually.
千萬不要隨便與人結婚。
Parents should educate children not to walk with strangers casually.
父母親應該要教育小孩子不能隨便跟陌生人走。