在英语中,“收拾小孩”可以用下列表达来表示:

tidy up the kids
clean up the kids
get the kids organized
put the kids in order
get the kids ready

这些表达都用来指让小孩整理自己的衣物、物品或者准备出门之类的事情。下面是一些例句:

Can you please tidy up the kids' toys before bedtime?
(请在睡觉前整理一下小孩的玩具)
I need to clean up the kids before we leave for school.
(我需要在我们上学之前收拾一下小孩)
Let's get the kids organized and ready to go.
(让我们整理一下小孩,准备出发)
Can you put the kids in order and get them ready for bed?
(你能把小孩整理好,准备睡觉吗?)
We need to get the kids ready for their swimming lessons.
(我们需要让小孩准备好上游泳课)

注意,在英语中,“tidy up”意思是“整理,收拾”,“clean up”意思是“打扫,清理”,“get organized”意思是“整理,准备”,“put in order”意思是“整理,组织”,“get ready”意思是“准备”。因此,这些表达的意思略有差别,应根据实际情况选用。