英文里没有直接对应“随便”的词。不同情况下，对应的英文是不同的。
1. 随便选一个数字吧。Please choose a random number.
Choose a random number between 1 and 10 and write it down on a piece of paper.
在1到10之间随便选一个数字，写在一张纸上。
2. 我就是随便看看。I am just looking around.
I am just looking around this aisle for different types of cereal. You can go join papa to get ice cream.
我就在这条过道随便看看这些不同类型的麦片。你可以和爸爸一起去挑冰淇淋。
3. 别随便动。Don't touch this and that.
Don’t touch this and that on my desk while I am working.
我工作的时候别随便动儿我桌子上的东西。
4. 随便。I don't mind.
Mommy: What do you want to have for dinner?
Child: I don't mind.
妈妈：晚饭想吃点什么？
孩子：随便。
5. 这个人很随便。He is very casual.
He is neither an uptight nor serious character. He is very casual.
他不是一个拘谨严肃的人，他很随便。
接下来，讲一个可以举一反三的翻译方法，使用whatever, whichever, whenever, whoever, wherever。
6. 随便什么 Whatever
Pick whatever song you want to learn and I can teach it to you.
随便选一首你想学的歌，我教你。
7. 随便哪个 Whichever
We have many books on the shelf. Choose whichever book you want mommy to read.
咱们架子上有好多书。随便选一本书妈妈给你读。
注：whatever和whichever的区别在于，whatever没有限定范围，而whichever有限定范围。
8. 随便什么时候 Whenever
Babies can always fall asleep whenever they are sleepy.
宝宝们随便什么时候困了都能睡着。
9. 随便谁 Whoever
Whoever is available can join the reading group.
随便谁都可以参加阅读小组。
10. 随便哪儿 Whereve
Let’s play hide-and-seek. Wherever you hide I can always find you.
咱们玩儿捉迷藏吧。随便你藏哪儿我都能找到你。
你和宝宝说英语（ID: parents_english）
头条号：你和宝宝说英语
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