mum

a. 沉默的
n. (口语)妈妈

Your mum will go spare if she finds out what you've done!

要是你妈妈知道你干的事, 她会气坏的!

If your Mum finds out what you've done, you'll really be in the soup!

要是你妈妈发觉你干的事, 你就要倒霉了!