Focus on the pronunciation of tread
English definition of “tread”
/tred/ v [I/T] (past tense trod /trɑd/, past participle trodden /ˈtrɑd·ən/ or trod /trɑd/) (TAKE STEP)
› to put the foot down while stepping, or to step on something: [I] fig. I hope I haven’t trod on other people’s toes by saying this.