不敢越雷池一步

1. • dare not go one step beyond the prescribed limit

Character by character

• 不(bù)no
• 敢(gǎn)dare
• 越(yuè)generic word for peoples or states of south China or south Asia at different historical periods
• 雷(léi)surname Lei
• 池(chí)surname Chi
• 一(yī)one
• 步(bù)surname Bu