eleven [数词] 十一 Ex: The clock struck eleven times , signaling the start of the event . 时钟敲了十一下,标志着活动的开始。
seventeen [数词] 十七 Ex: She was not good at math , so she thought twelve plus five was sixteen , while it was actually seventeen . 她不擅长数学,所以她以为十二加五是十六,而实际上是十七。