up to mischief

She knew the children were up to mischief, and she found them digging up the flowers.

她早知道那些孩子打算胡闹, 果然发现他们在掘花木.

I hope that the children are not up to mischief.

但愿孩子们不是在胡闹.

It's very quiet upstairs; they must be up to some mischief!

楼上很安静。他们一定在搞什么恶作剧。

That knock sounded to me as if someone was up to mischief.

这种敲门有点来意不善.

She knew the children were up to mischief.

她知道孩子们在做淘气的事情.

The little lad was a real handful. He was always up to mischief

这个小家伙真是难管教，他总是搞恶作剧。

The children are up to mischief.

小孩子们想胡闹.

The little lad was a real handful. He was always up to mischief.

这个小家伙真是难管教，他总是搞恶作剧。

The children are always getting up to mischief.

小孩子老想捣蛋.

Tell the children not to get up to mischief.

告诉那些孩子不要胡闹.

It's very quiet upstairs; they must be up to some mischief !

楼上很安静。他们一定在搞什么恶作剧。

The little lad was a real handful. He was always up to mischief...

这个小家伙真是难管教，他总是搞恶作剧。

Those boys have been up to mischief again; they've put water all over the floor.

那些男孩又淘气了, 他们把地板上弄得到处都是水.